Finding the Third Proportional to 1,055,142 and 2,147,572.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055,142 : 2,147,572.50 = 2,147,572.50 : x
2. Step 2: Convert to fraction form
   1,055,142/2,147,572.50 = 2,147,572.50/x
3. Step 3: Cross multiply
   1,055,142x = 2,147,572.50 × 2,147,572.50
4. Step 4: Simplify right side
   1,055,142x = 4,612,067,642,756.25
5. Step 5: Solve for x
   x = 4,612,067,642,756.25/1,055,142
6. Step 6: Final answer
   x = 4,371,039.77