Finding the Third Proportional to 606,492,636 and 866,692,020

Step by Step Solution

1. Step 1: Write the proportion equation
   606,492,636 : 866,692,020 = 866,692,020 : x
2. Step 2: Convert to fraction form
   606,492,636/866,692,020 = 866,692,020/x
3. Step 3: Cross multiply
   606,492,636x = 866,692,020 × 866,692,020
4. Step 4: Simplify right side
   606,492,636x = 751,155,057,531,680,384
5. Step 5: Solve for x
   x = 751,155,057,531,680,384/606,492,636
6. Step 6: Final answer
   x = 1,238,522,964.58