Finding the Third Proportional to 57,237.75 and 84,145.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,237.75 : 84,145.50 = 84,145.50 : x
2. Step 2: Convert to fraction form
   57,237.75/84,145.50 = 84,145.50/x
3. Step 3: Cross multiply
   57,237.75x = 84,145.50 × 84,145.50
4. Step 4: Simplify right side
   57,237.75x = 7,080,465,170.25
5. Step 5: Solve for x
   x = 7,080,465,170.25/57,237.75
6. Step 6: Final answer
   x = 123,702.72