Finding the Third Proportional to 864,988 and 1,377,426

Step by Step Solution

1. Step 1: Write the proportion equation
   864,988 : 1,377,426 = 1,377,426 : x
2. Step 2: Convert to fraction form
   864,988/1,377,426 = 1,377,426/x
3. Step 3: Cross multiply
   864,988x = 1,377,426 × 1,377,426
4. Step 4: Simplify right side
   864,988x = 1,897,302,385,476
5. Step 5: Solve for x
   x = 1,897,302,385,476/864,988
6. Step 6: Final answer
   x = 2,193,443.59