Finding the Third Proportional to 55,437 and 85,342.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,437 : 85,342.50 = 85,342.50 : x
2. Step 2: Convert to fraction form
   55,437/85,342.50 = 85,342.50/x
3. Step 3: Cross multiply
   55,437x = 85,342.50 × 85,342.50
4. Step 4: Simplify right side
   55,437x = 7,283,342,306.25
5. Step 5: Solve for x
   x = 7,283,342,306.25/55,437
6. Step 6: Final answer
   x = 131,380.53