Finding the Third Proportional to 57,007.13 and 89,426.53

Step by Step Solution

1. Step 1: Write the proportion equation
   57,007.13 : 89,426.53 = 89,426.53 : x
2. Step 2: Convert to fraction form
   57,007.13/89,426.53 = 89,426.53/x
3. Step 3: Cross multiply
   57,007.13x = 89,426.53 × 89,426.53
4. Step 4: Simplify right side
   57,007.13x = 7,997,104,491.41
5. Step 5: Solve for x
   x = 7,997,104,491.41/57,007.13
6. Step 6: Final answer
   x = 140,282.54