Finding the Third Proportional to 847,087 and 1,242,374

Step by Step Solution

1. Step 1: Write the proportion equation
   847,087 : 1,242,374 = 1,242,374 : x
2. Step 2: Convert to fraction form
   847,087/1,242,374 = 1,242,374/x
3. Step 3: Cross multiply
   847,087x = 1,242,374 × 1,242,374
4. Step 4: Simplify right side
   847,087x = 1,543,493,155,876
5. Step 5: Solve for x
   x = 1,543,493,155,876/847,087
6. Step 6: Final answer
   x = 1,822,118.81