Finding the Third Proportional to 3,317,822 and 7,278,460

Step by Step Solution

1. Step 1: Write the proportion equation
   3,317,822 : 7,278,460 = 7,278,460 : x
2. Step 2: Convert to fraction form
   3,317,822/7,278,460 = 7,278,460/x
3. Step 3: Cross multiply
   3,317,822x = 7,278,460 × 7,278,460
4. Step 4: Simplify right side
   3,317,822x = 52,975,979,971,600
5. Step 5: Solve for x
   x = 52,975,979,971,600/3,317,822
6. Step 6: Final answer
   x = 15,967,095.27