Finding the Third Proportional to 1,428,814 and 2,176,719

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,814 : 2,176,719 = 2,176,719 : x
2. Step 2: Convert to fraction form
   1,428,814/2,176,719 = 2,176,719/x
3. Step 3: Cross multiply
   1,428,814x = 2,176,719 × 2,176,719
4. Step 4: Simplify right side
   1,428,814x = 4,738,105,604,961
5. Step 5: Solve for x
   x = 4,738,105,604,961/1,428,814
6. Step 6: Final answer
   x = 3,316,110.85