Finding the Third Proportional to 65,088.56 and 142,661.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,088.56 : 142,661.25 = 142,661.25 : x
2. Step 2: Convert to fraction form
   65,088.56/142,661.25 = 142,661.25/x
3. Step 3: Cross multiply
   65,088.56x = 142,661.25 × 142,661.25
4. Step 4: Simplify right side
   65,088.56x = 20,352,232,251.56
5. Step 5: Solve for x
   x = 20,352,232,251.56/65,088.56
6. Step 6: Final answer
   x = 312,685.23