Finding the Third Proportional to 847,089 and 1,242,377

Step by Step Solution

1. Step 1: Write the proportion equation
   847,089 : 1,242,377 = 1,242,377 : x
2. Step 2: Convert to fraction form
   847,089/1,242,377 = 1,242,377/x
3. Step 3: Cross multiply
   847,089x = 1,242,377 × 1,242,377
4. Step 4: Simplify right side
   847,089x = 1,543,500,610,129
5. Step 5: Solve for x
   x = 1,543,500,610,129/847,089
6. Step 6: Final answer
   x = 1,822,123.31