Finding the Third Proportional to 31,900,801.50 and 69,977,133

Step by Step Solution

1. Step 1: Write the proportion equation
   31,900,801.50 : 69,977,133 = 69,977,133 : x
2. Step 2: Convert to fraction form
   31,900,801.50/69,977,133 = 69,977,133/x
3. Step 3: Cross multiply
   31,900,801.50x = 69,977,133 × 69,977,133
4. Step 4: Simplify right side
   31,900,801.50x = 4,896,799,142,899,689
5. Step 5: Solve for x
   x = 4,896,799,142,899,689/31,900,801.50
6. Step 6: Final answer
   x = 153,500,818.56