Finding the Third Proportional to 233,220 and 499,620

Step by Step Solution

1. Step 1: Write the proportion equation
   233,220 : 499,620 = 499,620 : x
2. Step 2: Convert to fraction form
   233,220/499,620 = 499,620/x
3. Step 3: Cross multiply
   233,220x = 499,620 × 499,620
4. Step 4: Simplify right side
   233,220x = 249,620,144,400
5. Step 5: Solve for x
   x = 249,620,144,400/233,220
6. Step 6: Final answer
   x = 1,070,320.49