Finding the Third Proportional to 53,145,076 and 86,780,382

Step by Step Solution

1. Step 1: Write the proportion equation
   53,145,076 : 86,780,382 = 86,780,382 : x
2. Step 2: Convert to fraction form
   53,145,076/86,780,382 = 86,780,382/x
3. Step 3: Cross multiply
   53,145,076x = 86,780,382 × 86,780,382
4. Step 4: Simplify right side
   53,145,076x = 7,530,834,700,065,924
5. Step 5: Solve for x
   x = 7,530,834,700,065,924/53,145,076
6. Step 6: Final answer
   x = 141,703,338.61