Finding the Third Proportional to 915,152 and 1,391,384

Step by Step Solution

1. Step 1: Write the proportion equation
   915,152 : 1,391,384 = 1,391,384 : x
2. Step 2: Convert to fraction form
   915,152/1,391,384 = 1,391,384/x
3. Step 3: Cross multiply
   915,152x = 1,391,384 × 1,391,384
4. Step 4: Simplify right side
   915,152x = 1,935,949,435,456
5. Step 5: Solve for x
   x = 1,935,949,435,456/915,152
6. Step 6: Final answer
   x = 2,115,440.32