Finding the Third Proportional to 820,598 and 1,706,428

Step by Step Solution

1. Step 1: Write the proportion equation
   820,598 : 1,706,428 = 1,706,428 : x
2. Step 2: Convert to fraction form
   820,598/1,706,428 = 1,706,428/x
3. Step 3: Cross multiply
   820,598x = 1,706,428 × 1,706,428
4. Step 4: Simplify right side
   820,598x = 2,911,896,519,184
5. Step 5: Solve for x
   x = 2,911,896,519,184/820,598
6. Step 6: Final answer
   x = 3,548,505.50