Finding the Third Proportional to 31,901,071.50 and 69,977,659.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,901,071.50 : 69,977,659.50 = 69,977,659.50 : x
2. Step 2: Convert to fraction form
   31,901,071.50/69,977,659.50 = 69,977,659.50/x
3. Step 3: Cross multiply
   31,901,071.50x = 69,977,659.50 × 69,977,659.50
4. Step 4: Simplify right side
   31,901,071.50x = 4,896,872,829,097,940
5. Step 5: Solve for x
   x = 4,896,872,829,097,940/31,901,071.50
6. Step 6: Final answer
   x = 153,501,829.21