Finding the Third Proportional to 72,901 and 156,979

Step by Step Solution

1. Step 1: Write the proportion equation
   72,901 : 156,979 = 156,979 : x
2. Step 2: Convert to fraction form
   72,901/156,979 = 156,979/x
3. Step 3: Cross multiply
   72,901x = 156,979 × 156,979
4. Step 4: Simplify right side
   72,901x = 24,642,406,441
5. Step 5: Solve for x
   x = 24,642,406,441/72,901
6. Step 6: Final answer
   x = 338,025.63