Finding the Third Proportional to 806,156 and 1,205,018

Step by Step Solution

1. Step 1: Write the proportion equation
   806,156 : 1,205,018 = 1,205,018 : x
2. Step 2: Convert to fraction form
   806,156/1,205,018 = 1,205,018/x
3. Step 3: Cross multiply
   806,156x = 1,205,018 × 1,205,018
4. Step 4: Simplify right side
   806,156x = 1,452,068,380,324
5. Step 5: Solve for x
   x = 1,452,068,380,324/806,156
6. Step 6: Final answer
   x = 1,801,225.05