Finding the Third Proportional to 851,790 and 1,876,413

Step by Step Solution

1. Step 1: Write the proportion equation
   851,790 : 1,876,413 = 1,876,413 : x
2. Step 2: Convert to fraction form
   851,790/1,876,413 = 1,876,413/x
3. Step 3: Cross multiply
   851,790x = 1,876,413 × 1,876,413
4. Step 4: Simplify right side
   851,790x = 3,520,925,746,569
5. Step 5: Solve for x
   x = 3,520,925,746,569/851,790
6. Step 6: Final answer
   x = 4,133,560.79