Finding the Third Proportional to 1,167,309 and 2,142,810

Step by Step Solution

1. Step 1: Write the proportion equation
   1,167,309 : 2,142,810 = 2,142,810 : x
2. Step 2: Convert to fraction form
   1,167,309/2,142,810 = 2,142,810/x
3. Step 3: Cross multiply
   1,167,309x = 2,142,810 × 2,142,810
4. Step 4: Simplify right side
   1,167,309x = 4,591,634,696,100
5. Step 5: Solve for x
   x = 4,591,634,696,100/1,167,309
6. Step 6: Final answer
   x = 3,933,521.20