Finding the Third Proportional to 1,210,266 and 1,644,534

Step by Step Solution

1. Step 1: Write the proportion equation
   1,210,266 : 1,644,534 = 1,644,534 : x
2. Step 2: Convert to fraction form
   1,210,266/1,644,534 = 1,644,534/x
3. Step 3: Cross multiply
   1,210,266x = 1,644,534 × 1,644,534
4. Step 4: Simplify right side
   1,210,266x = 2,704,492,077,156
5. Step 5: Solve for x
   x = 2,704,492,077,156/1,210,266
6. Step 6: Final answer
   x = 2,234,626.17