Finding the Third Proportional to 31,580.25 and 67,536.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,580.25 : 67,536.75 = 67,536.75 : x
2. Step 2: Convert to fraction form
   31,580.25/67,536.75 = 67,536.75/x
3. Step 3: Cross multiply
   31,580.25x = 67,536.75 × 67,536.75
4. Step 4: Simplify right side
   31,580.25x = 4,561,212,600.56
5. Step 5: Solve for x
   x = 4,561,212,600.56/31,580.25
6. Step 6: Final answer
   x = 144,432.44