Finding the Third Proportional to 9,468,688 and 20,708,792

Step by Step Solution

1. Step 1: Write the proportion equation
   9,468,688 : 20,708,792 = 20,708,792 : x
2. Step 2: Convert to fraction form
   9,468,688/20,708,792 = 20,708,792/x
3. Step 3: Cross multiply
   9,468,688x = 20,708,792 × 20,708,792
4. Step 4: Simplify right side
   9,468,688x = 428,854,066,099,264
5. Step 5: Solve for x
   x = 428,854,066,099,264/9,468,688
6. Step 6: Final answer
   x = 45,291,815.10