Finding the Third Proportional to 686,626 and 1,005,358

Step by Step Solution

1. Step 1: Write the proportion equation
   686,626 : 1,005,358 = 1,005,358 : x
2. Step 2: Convert to fraction form
   686,626/1,005,358 = 1,005,358/x
3. Step 3: Cross multiply
   686,626x = 1,005,358 × 1,005,358
4. Step 4: Simplify right side
   686,626x = 1,010,744,708,164
5. Step 5: Solve for x
   x = 1,010,744,708,164/686,626
6. Step 6: Final answer
   x = 1,472,045.49