Finding the Third Proportional to 755,748 and 1,129,590

Step by Step Solution

1. Step 1: Write the proportion equation
   755,748 : 1,129,590 = 1,129,590 : x
2. Step 2: Convert to fraction form
   755,748/1,129,590 = 1,129,590/x
3. Step 3: Cross multiply
   755,748x = 1,129,590 × 1,129,590
4. Step 4: Simplify right side
   755,748x = 1,275,973,568,100
5. Step 5: Solve for x
   x = 1,275,973,568,100/755,748
6. Step 6: Final answer
   x = 1,688,358.51