Finding the Third Proportional to 2,143,620 and 4,719,034

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,620 : 4,719,034 = 4,719,034 : x
2. Step 2: Convert to fraction form
   2,143,620/4,719,034 = 4,719,034/x
3. Step 3: Cross multiply
   2,143,620x = 4,719,034 × 4,719,034
4. Step 4: Simplify right side
   2,143,620x = 22,269,281,893,156
5. Step 5: Solve for x
   x = 22,269,281,893,156/2,143,620
6. Step 6: Final answer
   x = 10,388,633.20