Finding the Third Proportional to 31,331.25 and 67,604.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,331.25 : 67,604.63 = 67,604.63 : x
2. Step 2: Convert to fraction form
   31,331.25/67,604.63 = 67,604.63/x
3. Step 3: Cross multiply
   31,331.25x = 67,604.63 × 67,604.63
4. Step 4: Simplify right side
   31,331.25x = 4,570,385,321.39
5. Step 5: Solve for x
   x = 4,570,385,321.39/31,331.25
6. Step 6: Final answer
   x = 145,873.06