Finding the Third Proportional to 690,423 and 1,476,798

Step by Step Solution

1. Step 1: Write the proportion equation
   690,423 : 1,476,798 = 1,476,798 : x
2. Step 2: Convert to fraction form
   690,423/1,476,798 = 1,476,798/x
3. Step 3: Cross multiply
   690,423x = 1,476,798 × 1,476,798
4. Step 4: Simplify right side
   690,423x = 2,180,932,332,804
5. Step 5: Solve for x
   x = 2,180,932,332,804/690,423
6. Step 6: Final answer
   x = 3,158,834.99