Finding the Third Proportional to 921,706 and 1,916,986

Step by Step Solution

1. Step 1: Write the proportion equation
   921,706 : 1,916,986 = 1,916,986 : x
2. Step 2: Convert to fraction form
   921,706/1,916,986 = 1,916,986/x
3. Step 3: Cross multiply
   921,706x = 1,916,986 × 1,916,986
4. Step 4: Simplify right side
   921,706x = 3,674,835,324,196
5. Step 5: Solve for x
   x = 3,674,835,324,196/921,706
6. Step 6: Final answer
   x = 3,986,992.95