Finding the Third Proportional to 838,406 and 1,818,594

Step by Step Solution

1. Step 1: Write the proportion equation
   838,406 : 1,818,594 = 1,818,594 : x
2. Step 2: Convert to fraction form
   838,406/1,818,594 = 1,818,594/x
3. Step 3: Cross multiply
   838,406x = 1,818,594 × 1,818,594
4. Step 4: Simplify right side
   838,406x = 3,307,284,136,836
5. Step 5: Solve for x
   x = 3,307,284,136,836/838,406
6. Step 6: Final answer
   x = 3,944,728.61