Finding the Third Proportional to 3,428,768 and 4,670,140

Step by Step Solution

1. Step 1: Write the proportion equation
   3,428,768 : 4,670,140 = 4,670,140 : x
2. Step 2: Convert to fraction form
   3,428,768/4,670,140 = 4,670,140/x
3. Step 3: Cross multiply
   3,428,768x = 4,670,140 × 4,670,140
4. Step 4: Simplify right side
   3,428,768x = 21,810,207,619,600
5. Step 5: Solve for x
   x = 21,810,207,619,600/3,428,768
6. Step 6: Final answer
   x = 6,360,945.86