Finding the Third Proportional to 31,900,755 and 69,977,058

Step by Step Solution

1. Step 1: Write the proportion equation
   31,900,755 : 69,977,058 = 69,977,058 : x
2. Step 2: Convert to fraction form
   31,900,755/69,977,058 = 69,977,058/x
3. Step 3: Cross multiply
   31,900,755x = 69,977,058 × 69,977,058
4. Step 4: Simplify right side
   31,900,755x = 4,896,788,646,335,364
5. Step 5: Solve for x
   x = 4,896,788,646,335,364/31,900,755
6. Step 6: Final answer
   x = 153,500,713.27