Finding the Third Proportional to 721,449 and 1,142,334

Step by Step Solution

1. Step 1: Write the proportion equation
   721,449 : 1,142,334 = 1,142,334 : x
2. Step 2: Convert to fraction form
   721,449/1,142,334 = 1,142,334/x
3. Step 3: Cross multiply
   721,449x = 1,142,334 × 1,142,334
4. Step 4: Simplify right side
   721,449x = 1,304,926,967,556
5. Step 5: Solve for x
   x = 1,304,926,967,556/721,449
6. Step 6: Final answer
   x = 1,808,758.44