Finding the Third Proportional to 915,774 and 1,400,988

Step by Step Solution

1. Step 1: Write the proportion equation
   915,774 : 1,400,988 = 1,400,988 : x
2. Step 2: Convert to fraction form
   915,774/1,400,988 = 1,400,988/x
3. Step 3: Cross multiply
   915,774x = 1,400,988 × 1,400,988
4. Step 4: Simplify right side
   915,774x = 1,962,767,376,144
5. Step 5: Solve for x
   x = 1,962,767,376,144/915,774
6. Step 6: Final answer
   x = 2,143,287.95