Finding the Third Proportional to 686,808 and 1,050,624

Step by Step Solution

1. Step 1: Write the proportion equation
   686,808 : 1,050,624 = 1,050,624 : x
2. Step 2: Convert to fraction form
   686,808/1,050,624 = 1,050,624/x
3. Step 3: Cross multiply
   686,808x = 1,050,624 × 1,050,624
4. Step 4: Simplify right side
   686,808x = 1,103,810,789,376
5. Step 5: Solve for x
   x = 1,103,810,789,376/686,808
6. Step 6: Final answer
   x = 1,607,160.65