Finding the Third Proportional to 613,946 and 1,258,321

Step by Step Solution

1. Step 1: Write the proportion equation
   613,946 : 1,258,321 = 1,258,321 : x
2. Step 2: Convert to fraction form
   613,946/1,258,321 = 1,258,321/x
3. Step 3: Cross multiply
   613,946x = 1,258,321 × 1,258,321
4. Step 4: Simplify right side
   613,946x = 1,583,371,739,041
5. Step 5: Solve for x
   x = 1,583,371,739,041/613,946
6. Step 6: Final answer
   x = 2,579,008.15