Finding the Third Proportional to 56,143.75 and 84,443.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,143.75 : 84,443.25 = 84,443.25 : x
2. Step 2: Convert to fraction form
   56,143.75/84,443.25 = 84,443.25/x
3. Step 3: Cross multiply
   56,143.75x = 84,443.25 × 84,443.25
4. Step 4: Simplify right side
   56,143.75x = 7,130,662,470.56
5. Step 5: Solve for x
   x = 7,130,662,470.56/56,143.75
6. Step 6: Final answer
   x = 127,007.24