Finding the Third Proportional to 152,380 and 328,086

Step by Step Solution

1. Step 1: Write the proportion equation
   152,380 : 328,086 = 328,086 : x
2. Step 2: Convert to fraction form
   152,380/328,086 = 328,086/x
3. Step 3: Cross multiply
   152,380x = 328,086 × 328,086
4. Step 4: Simplify right side
   152,380x = 107,640,423,396
5. Step 5: Solve for x
   x = 107,640,423,396/152,380
6. Step 6: Final answer
   x = 706,394.69