Finding the Third Proportional to 86,663,804 and 134,623,410

Step by Step Solution

1. Step 1: Write the proportion equation
   86,663,804 : 134,623,410 = 134,623,410 : x
2. Step 2: Convert to fraction form
   86,663,804/134,623,410 = 134,623,410/x
3. Step 3: Cross multiply
   86,663,804x = 134,623,410 × 134,623,410
4. Step 4: Simplify right side
   86,663,804x = 18,123,462,520,028,100
5. Step 5: Solve for x
   x = 18,123,462,520,028,100/86,663,804
6. Step 6: Final answer
   x = 209,123,782.75