Finding the Third Proportional to 87,656 and 142,412

Step by Step Solution

1. Step 1: Write the proportion equation
   87,656 : 142,412 = 142,412 : x
2. Step 2: Convert to fraction form
   87,656/142,412 = 142,412/x
3. Step 3: Cross multiply
   87,656x = 142,412 × 142,412
4. Step 4: Simplify right side
   87,656x = 20,281,177,744
5. Step 5: Solve for x
   x = 20,281,177,744/87,656
6. Step 6: Final answer
   x = 231,372.38