Finding the Third Proportional to 691,440 and 1,084,665

Step by Step Solution

1. Step 1: Write the proportion equation
   691,440 : 1,084,665 = 1,084,665 : x
2. Step 2: Convert to fraction form
   691,440/1,084,665 = 1,084,665/x
3. Step 3: Cross multiply
   691,440x = 1,084,665 × 1,084,665
4. Step 4: Simplify right side
   691,440x = 1,176,498,162,225
5. Step 5: Solve for x
   x = 1,176,498,162,225/691,440
6. Step 6: Final answer
   x = 1,701,518.80