Finding the Third Proportional to 686,892 and 1,510,800

Step by Step Solution

1. Step 1: Write the proportion equation
   686,892 : 1,510,800 = 1,510,800 : x
2. Step 2: Convert to fraction form
   686,892/1,510,800 = 1,510,800/x
3. Step 3: Cross multiply
   686,892x = 1,510,800 × 1,510,800
4. Step 4: Simplify right side
   686,892x = 2,282,516,640,000
5. Step 5: Solve for x
   x = 2,282,516,640,000/686,892
6. Step 6: Final answer
   x = 3,322,962.91