Finding the Third Proportional to 152,931 and 316,614

Step by Step Solution

1. Step 1: Write the proportion equation
   152,931 : 316,614 = 316,614 : x
2. Step 2: Convert to fraction form
   152,931/316,614 = 316,614/x
3. Step 3: Cross multiply
   152,931x = 316,614 × 316,614
4. Step 4: Simplify right side
   152,931x = 100,244,424,996
5. Step 5: Solve for x
   x = 100,244,424,996/152,931
6. Step 6: Final answer
   x = 655,487.93