Finding the Third Proportional to 72,857 and 98,429

Step by Step Solution

1. Step 1: Write the proportion equation
   72,857 : 98,429 = 98,429 : x
2. Step 2: Convert to fraction form
   72,857/98,429 = 98,429/x
3. Step 3: Cross multiply
   72,857x = 98,429 × 98,429
4. Step 4: Simplify right side
   72,857x = 9,688,268,041
5. Step 5: Solve for x
   x = 9,688,268,041/72,857
6. Step 6: Final answer
   x = 132,976.49