Finding the Third Proportional to 508,210 and 1,086,428

Step by Step Solution

1. Step 1: Write the proportion equation
   508,210 : 1,086,428 = 1,086,428 : x
2. Step 2: Convert to fraction form
   508,210/1,086,428 = 1,086,428/x
3. Step 3: Cross multiply
   508,210x = 1,086,428 × 1,086,428
4. Step 4: Simplify right side
   508,210x = 1,180,325,799,184
5. Step 5: Solve for x
   x = 1,180,325,799,184/508,210
6. Step 6: Final answer
   x = 2,322,515.89