Finding the Third Proportional to 152,934 and 316,620

Step by Step Solution

1. Step 1: Write the proportion equation
   152,934 : 316,620 = 316,620 : x
2. Step 2: Convert to fraction form
   152,934/316,620 = 316,620/x
3. Step 3: Cross multiply
   152,934x = 316,620 × 316,620
4. Step 4: Simplify right side
   152,934x = 100,248,224,400
5. Step 5: Solve for x
   x = 100,248,224,400/152,934
6. Step 6: Final answer
   x = 655,499.92