Finding the Third Proportional to 433,955,061 and 654,968,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   433,955,061 : 654,968,128.50 = 654,968,128.50 : x
2. Step 2: Convert to fraction form
   433,955,061/654,968,128.50 = 654,968,128.50/x
3. Step 3: Cross multiply
   433,955,061x = 654,968,128.50 × 654,968,128.50
4. Step 4: Simplify right side
   433,955,061x = 428,983,249,350,792,512
5. Step 5: Solve for x
   x = 428,983,249,350,792,512/433,955,061
6. Step 6: Final answer
   x = 988,543,026.47