Finding the Third Proportional to 758,342 and 1,142,319

Step by Step Solution

1. Step 1: Write the proportion equation
   758,342 : 1,142,319 = 1,142,319 : x
2. Step 2: Convert to fraction form
   758,342/1,142,319 = 1,142,319/x
3. Step 3: Cross multiply
   758,342x = 1,142,319 × 1,142,319
4. Step 4: Simplify right side
   758,342x = 1,304,892,697,761
5. Step 5: Solve for x
   x = 1,304,892,697,761/758,342
6. Step 6: Final answer
   x = 1,720,717.96