Finding the Third Proportional to 3,407,262 and 7,287,280

Step by Step Solution

1. Step 1: Write the proportion equation
   3,407,262 : 7,287,280 = 7,287,280 : x
2. Step 2: Convert to fraction form
   3,407,262/7,287,280 = 7,287,280/x
3. Step 3: Cross multiply
   3,407,262x = 7,287,280 × 7,287,280
4. Step 4: Simplify right side
   3,407,262x = 53,104,449,798,400
5. Step 5: Solve for x
   x = 53,104,449,798,400/3,407,262
6. Step 6: Final answer
   x = 15,585,666.67