Finding the Third Proportional to 56,424.25 and 85,744.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,424.25 : 85,744.50 = 85,744.50 : x
2. Step 2: Convert to fraction form
   56,424.25/85,744.50 = 85,744.50/x
3. Step 3: Cross multiply
   56,424.25x = 85,744.50 × 85,744.50
4. Step 4: Simplify right side
   56,424.25x = 7,352,119,280.25
5. Step 5: Solve for x
   x = 7,352,119,280.25/56,424.25
6. Step 6: Final answer
   x = 130,300.70