Finding the Third Proportional to 152,940 and 316,632

Step by Step Solution

1. Step 1: Write the proportion equation
   152,940 : 316,632 = 316,632 : x
2. Step 2: Convert to fraction form
   152,940/316,632 = 316,632/x
3. Step 3: Cross multiply
   152,940x = 316,632 × 316,632
4. Step 4: Simplify right side
   152,940x = 100,255,823,424
5. Step 5: Solve for x
   x = 100,255,823,424/152,940
6. Step 6: Final answer
   x = 655,523.89