Finding the Third Proportional to 89,854,062 and 128,403,792

Step by Step Solution

1. Step 1: Write the proportion equation
   89,854,062 : 128,403,792 = 128,403,792 : x
2. Step 2: Convert to fraction form
   89,854,062/128,403,792 = 128,403,792/x
3. Step 3: Cross multiply
   89,854,062x = 128,403,792 × 128,403,792
4. Step 4: Simplify right side
   89,854,062x = 16,487,533,799,979,264
5. Step 5: Solve for x
   x = 16,487,533,799,979,264/89,854,062
6. Step 6: Final answer
   x = 183,492,358.98