Finding the Third Proportional to 152,156 and 328,370

Step by Step Solution

1. Step 1: Write the proportion equation
   152,156 : 328,370 = 328,370 : x
2. Step 2: Convert to fraction form
   152,156/328,370 = 328,370/x
3. Step 3: Cross multiply
   152,156x = 328,370 × 328,370
4. Step 4: Simplify right side
   152,156x = 107,826,856,900
5. Step 5: Solve for x
   x = 107,826,856,900/152,156
6. Step 6: Final answer
   x = 708,659.91