Finding the Third Proportional to 1,229,565 and 2,519,820

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229,565 : 2,519,820 = 2,519,820 : x
2. Step 2: Convert to fraction form
   1,229,565/2,519,820 = 2,519,820/x
3. Step 3: Cross multiply
   1,229,565x = 2,519,820 × 2,519,820
4. Step 4: Simplify right side
   1,229,565x = 6,349,492,832,400
5. Step 5: Solve for x
   x = 6,349,492,832,400/1,229,565
6. Step 6: Final answer
   x = 5,164,015.59