Finding the Third Proportional to 847,225 and 1,290,713

Step by Step Solution

1. Step 1: Write the proportion equation
   847,225 : 1,290,713 = 1,290,713 : x
2. Step 2: Convert to fraction form
   847,225/1,290,713 = 1,290,713/x
3. Step 3: Cross multiply
   847,225x = 1,290,713 × 1,290,713
4. Step 4: Simplify right side
   847,225x = 1,665,940,048,369
5. Step 5: Solve for x
   x = 1,665,940,048,369/847,225
6. Step 6: Final answer
   x = 1,966,349.02