Finding the Third Proportional to 152,928 and 316,610

Step by Step Solution

1. Step 1: Write the proportion equation
   152,928 : 316,610 = 316,610 : x
2. Step 2: Convert to fraction form
   152,928/316,610 = 316,610/x
3. Step 3: Cross multiply
   152,928x = 316,610 × 316,610
4. Step 4: Simplify right side
   152,928x = 100,241,892,100
5. Step 5: Solve for x
   x = 100,241,892,100/152,928
6. Step 6: Final answer
   x = 655,484.23