Finding the Third Proportional to 31,631,280 and 69,063,456

Step by Step Solution

1. Step 1: Write the proportion equation
   31,631,280 : 69,063,456 = 69,063,456 : x
2. Step 2: Convert to fraction form
   31,631,280/69,063,456 = 69,063,456/x
3. Step 3: Cross multiply
   31,631,280x = 69,063,456 × 69,063,456
4. Step 4: Simplify right side
   31,631,280x = 4,769,760,954,663,936
5. Step 5: Solve for x
   x = 4,769,760,954,663,936/31,631,280
6. Step 6: Final answer
   x = 150,792,536.84