Finding the Third Proportional to 55,437.75 and 85,328.25

Step by Step Solution

1. Step 1: Write the proportion equation
   55,437.75 : 85,328.25 = 85,328.25 : x
2. Step 2: Convert to fraction form
   55,437.75/85,328.25 = 85,328.25/x
3. Step 3: Cross multiply
   55,437.75x = 85,328.25 × 85,328.25
4. Step 4: Simplify right side
   55,437.75x = 7,280,910,248.06
5. Step 5: Solve for x
   x = 7,280,910,248.06/55,437.75
6. Step 6: Final answer
   x = 131,334.88