Finding the Third Proportional to 1,099,170 and 2,316,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099,170 : 2,316,420 = 2,316,420 : x
2. Step 2: Convert to fraction form
   1,099,170/2,316,420 = 2,316,420/x
3. Step 3: Cross multiply
   1,099,170x = 2,316,420 × 2,316,420
4. Step 4: Simplify right side
   1,099,170x = 5,365,801,616,400
5. Step 5: Solve for x
   x = 5,365,801,616,400/1,099,170
6. Step 6: Final answer
   x = 4,881,684.92