Finding the Third Proportional to 31,037,978.25 and 73,165,146.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,037,978.25 : 73,165,146.75 = 73,165,146.75 : x
2. Step 2: Convert to fraction form
   31,037,978.25/73,165,146.75 = 73,165,146.75/x
3. Step 3: Cross multiply
   31,037,978.25x = 73,165,146.75 × 73,165,146.75
4. Step 4: Simplify right side
   31,037,978.25x = 5,353,138,698,949,036
5. Step 5: Solve for x
   x = 5,353,138,698,949,036/31,037,978.25
6. Step 6: Final answer
   x = 172,470,598.95