Finding the Third Proportional to 7,142,880 and 10,778,724

Step by Step Solution

1. Step 1: Write the proportion equation
   7,142,880 : 10,778,724 = 10,778,724 : x
2. Step 2: Convert to fraction form
   7,142,880/10,778,724 = 10,778,724/x
3. Step 3: Cross multiply
   7,142,880x = 10,778,724 × 10,778,724
4. Step 4: Simplify right side
   7,142,880x = 116,180,891,068,176
5. Step 5: Solve for x
   x = 116,180,891,068,176/7,142,880
6. Step 6: Final answer
   x = 16,265,272.70