Finding the Third Proportional to 85,003.50 and 124,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,003.50 : 124,912.50 = 124,912.50 : x
2. Step 2: Convert to fraction form
   85,003.50/124,912.50 = 124,912.50/x
3. Step 3: Cross multiply
   85,003.50x = 124,912.50 × 124,912.50
4. Step 4: Simplify right side
   85,003.50x = 15,603,132,656.25
5. Step 5: Solve for x
   x = 15,603,132,656.25/85,003.50
6. Step 6: Final answer
   x = 183,558.71