Finding the Third Proportional to 876,543 and 1,820,478

Step by Step Solution

1. Step 1: Write the proportion equation
   876,543 : 1,820,478 = 1,820,478 : x
2. Step 2: Convert to fraction form
   876,543/1,820,478 = 1,820,478/x
3. Step 3: Cross multiply
   876,543x = 1,820,478 × 1,820,478
4. Step 4: Simplify right side
   876,543x = 3,314,140,148,484
5. Step 5: Solve for x
   x = 3,314,140,148,484/876,543
6. Step 6: Final answer
   x = 3,780,921.36