Finding the Third Proportional to 31,187.25 and 67,705.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,187.25 : 67,705.88 = 67,705.88 : x
2. Step 2: Convert to fraction form
   31,187.25/67,705.88 = 67,705.88/x
3. Step 3: Cross multiply
   31,187.25x = 67,705.88 × 67,705.88
4. Step 4: Simplify right side
   31,187.25x = 4,584,085,509.52
5. Step 5: Solve for x
   x = 4,584,085,509.52/31,187.25
6. Step 6: Final answer
   x = 146,985.88