Finding the Third Proportional to 55,017.38 and 85,813.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,017.38 : 85,813.50 = 85,813.50 : x
2. Step 2: Convert to fraction form
   55,017.38/85,813.50 = 85,813.50/x
3. Step 3: Cross multiply
   55,017.38x = 85,813.50 × 85,813.50
4. Step 4: Simplify right side
   55,017.38x = 7,363,956,782.25
5. Step 5: Solve for x
   x = 7,363,956,782.25/55,017.38
6. Step 6: Final answer
   x = 133,847.84