Finding the Third Proportional to 56,605.50 and 85,050

Step by Step Solution

1. Step 1: Write the proportion equation
   56,605.50 : 85,050 = 85,050 : x
2. Step 2: Convert to fraction form
   56,605.50/85,050 = 85,050/x
3. Step 3: Cross multiply
   56,605.50x = 85,050 × 85,050
4. Step 4: Simplify right side
   56,605.50x = 7,233,502,500
5. Step 5: Solve for x
   x = 7,233,502,500/56,605.50
6. Step 6: Final answer
   x = 127,787.98