Finding the Third Proportional to 851,789 and 1,876,410

Step by Step Solution

1. Step 1: Write the proportion equation
   851,789 : 1,876,410 = 1,876,410 : x
2. Step 2: Convert to fraction form
   851,789/1,876,410 = 1,876,410/x
3. Step 3: Cross multiply
   851,789x = 1,876,410 × 1,876,410
4. Step 4: Simplify right side
   851,789x = 3,520,914,488,100
5. Step 5: Solve for x
   x = 3,520,914,488,100/851,789
6. Step 6: Final answer
   x = 4,133,552.43