Finding the Third Proportional to 72,908 and 156,670

Step by Step Solution

1. Step 1: Write the proportion equation
   72,908 : 156,670 = 156,670 : x
2. Step 2: Convert to fraction form
   72,908/156,670 = 156,670/x
3. Step 3: Cross multiply
   72,908x = 156,670 × 156,670
4. Step 4: Simplify right side
   72,908x = 24,545,488,900
5. Step 5: Solve for x
   x = 24,545,488,900/72,908
6. Step 6: Final answer
   x = 336,663.86