Finding the Third Proportional to 503,449.50 and 762,486

Step by Step Solution

1. Step 1: Write the proportion equation
   503,449.50 : 762,486 = 762,486 : x
2. Step 2: Convert to fraction form
   503,449.50/762,486 = 762,486/x
3. Step 3: Cross multiply
   503,449.50x = 762,486 × 762,486
4. Step 4: Simplify right side
   503,449.50x = 581,384,900,196
5. Step 5: Solve for x
   x = 581,384,900,196/503,449.50
6. Step 6: Final answer
   x = 1,154,802.82