Finding the Third Proportional to 3,640,530,069,540 and 7,921,940,083,858.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640,530,069,540 : 7,921,940,083,858.50 = 7,921,940,083,858.50 : x
2. Step 2: Convert to fraction form
   3,640,530,069,540/7,921,940,083,858.50 = 7,921,940,083,858.50/x
3. Step 3: Cross multiply
   3,640,530,069,540x = 7,921,940,083,858.50 × 7,921,940,083,858.50
4. Step 4: Simplify right side
   3,640,530,069,540x = 62,757,134,692,244,017,156,980,736
5. Step 5: Solve for x
   x = 62,757,134,692,244,017,156,980,736/3,640,530,069,540
6. Step 6: Final answer
   x = 17,238,460,744,309.61