Finding the Third Proportional to 891,372 and 1,380,820

Step by Step Solution

1. Step 1: Write the proportion equation
   891,372 : 1,380,820 = 1,380,820 : x
2. Step 2: Convert to fraction form
   891,372/1,380,820 = 1,380,820/x
3. Step 3: Cross multiply
   891,372x = 1,380,820 × 1,380,820
4. Step 4: Simplify right side
   891,372x = 1,906,663,872,400
5. Step 5: Solve for x
   x = 1,906,663,872,400/891,372
6. Step 6: Final answer
   x = 2,139,021.50