Finding the Third Proportional to 152,610 and 319,160.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,610 : 319,160.50 = 319,160.50 : x
2. Step 2: Convert to fraction form
   152,610/319,160.50 = 319,160.50/x
3. Step 3: Cross multiply
   152,610x = 319,160.50 × 319,160.50
4. Step 4: Simplify right side
   152,610x = 101,863,424,760.25
5. Step 5: Solve for x
   x = 101,863,424,760.25/152,610
6. Step 6: Final answer
   x = 667,475.43