Finding the Third Proportional to 921,676 and 1,916,928

Step by Step Solution

1. Step 1: Write the proportion equation
   921,676 : 1,916,928 = 1,916,928 : x
2. Step 2: Convert to fraction form
   921,676/1,916,928 = 1,916,928/x
3. Step 3: Cross multiply
   921,676x = 1,916,928 × 1,916,928
4. Step 4: Simplify right side
   921,676x = 3,674,612,957,184
5. Step 5: Solve for x
   x = 3,674,612,957,184/921,676
6. Step 6: Final answer
   x = 3,986,881.46