Finding the Third Proportional to 921,466 and 1,916,502

Step by Step Solution

1. Step 1: Write the proportion equation
   921,466 : 1,916,502 = 1,916,502 : x
2. Step 2: Convert to fraction form
   921,466/1,916,502 = 1,916,502/x
3. Step 3: Cross multiply
   921,466x = 1,916,502 × 1,916,502
4. Step 4: Simplify right side
   921,466x = 3,672,979,916,004
5. Step 5: Solve for x
   x = 3,672,979,916,004/921,466
6. Step 6: Final answer
   x = 3,986,017.84