Finding the Third Proportional to 55,592.25 and 85,990.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,592.25 : 85,990.50 = 85,990.50 : x
2. Step 2: Convert to fraction form
   55,592.25/85,990.50 = 85,990.50/x
3. Step 3: Cross multiply
   55,592.25x = 85,990.50 × 85,990.50
4. Step 4: Simplify right side
   55,592.25x = 7,394,366,090.25
5. Step 5: Solve for x
   x = 7,394,366,090.25/55,592.25
6. Step 6: Final answer
   x = 133,010.74