Finding the Third Proportional to 133,310 and 288,760.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,310 : 288,760.50 = 288,760.50 : x
2. Step 2: Convert to fraction form
   133,310/288,760.50 = 288,760.50/x
3. Step 3: Cross multiply
   133,310x = 288,760.50 × 288,760.50
4. Step 4: Simplify right side
   133,310x = 83,382,626,360.25
5. Step 5: Solve for x
   x = 83,382,626,360.25/133,310
6. Step 6: Final answer
   x = 625,479.16