Finding the Third Proportional to 31,761.75 and 67,741.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,761.75 : 67,741.50 = 67,741.50 : x
2. Step 2: Convert to fraction form
   31,761.75/67,741.50 = 67,741.50/x
3. Step 3: Cross multiply
   31,761.75x = 67,741.50 × 67,741.50
4. Step 4: Simplify right side
   31,761.75x = 4,588,910,822.25
5. Step 5: Solve for x
   x = 4,588,910,822.25/31,761.75
6. Step 6: Final answer
   x = 144,479.16