Finding the Third Proportional to 152,080.50 and 330,918

Step by Step Solution

1. Step 1: Write the proportion equation
   152,080.50 : 330,918 = 330,918 : x
2. Step 2: Convert to fraction form
   152,080.50/330,918 = 330,918/x
3. Step 3: Cross multiply
   152,080.50x = 330,918 × 330,918
4. Step 4: Simplify right side
   152,080.50x = 109,506,722,724
5. Step 5: Solve for x
   x = 109,506,722,724/152,080.50
6. Step 6: Final answer
   x = 720,057.62