Finding the Third Proportional to 658,586 and 1,047,315

Step by Step Solution

1. Step 1: Write the proportion equation
   658,586 : 1,047,315 = 1,047,315 : x
2. Step 2: Convert to fraction form
   658,586/1,047,315 = 1,047,315/x
3. Step 3: Cross multiply
   658,586x = 1,047,315 × 1,047,315
4. Step 4: Simplify right side
   658,586x = 1,096,868,709,225
5. Step 5: Solve for x
   x = 1,096,868,709,225/658,586
6. Step 6: Final answer
   x = 1,665,490.47