Finding the Third Proportional to 1,242,888 and 2,648,464

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242,888 : 2,648,464 = 2,648,464 : x
2. Step 2: Convert to fraction form
   1,242,888/2,648,464 = 2,648,464/x
3. Step 3: Cross multiply
   1,242,888x = 2,648,464 × 2,648,464
4. Step 4: Simplify right side
   1,242,888x = 7,014,361,559,296
5. Step 5: Solve for x
   x = 7,014,361,559,296/1,242,888
6. Step 6: Final answer
   x = 5,643,599.07