Finding the Third Proportional to 915,848 and 1,989,328

Step by Step Solution

1. Step 1: Write the proportion equation
   915,848 : 1,989,328 = 1,989,328 : x
2. Step 2: Convert to fraction form
   915,848/1,989,328 = 1,989,328/x
3. Step 3: Cross multiply
   915,848x = 1,989,328 × 1,989,328
4. Step 4: Simplify right side
   915,848x = 3,957,425,891,584
5. Step 5: Solve for x
   x = 3,957,425,891,584/915,848
6. Step 6: Final answer
   x = 4,321,050.97