Finding the Third Proportional to 686,376 and 1,049,970

Step by Step Solution

1. Step 1: Write the proportion equation
   686,376 : 1,049,970 = 1,049,970 : x
2. Step 2: Convert to fraction form
   686,376/1,049,970 = 1,049,970/x
3. Step 3: Cross multiply
   686,376x = 1,049,970 × 1,049,970
4. Step 4: Simplify right side
   686,376x = 1,102,437,000,900
5. Step 5: Solve for x
   x = 1,102,437,000,900/686,376
6. Step 6: Final answer
   x = 1,606,170.67