Finding the Third Proportional to 7,140,739 and 10,878,429

Step by Step Solution

1. Step 1: Write the proportion equation
   7,140,739 : 10,878,429 = 10,878,429 : x
2. Step 2: Convert to fraction form
   7,140,739/10,878,429 = 10,878,429/x
3. Step 3: Cross multiply
   7,140,739x = 10,878,429 × 10,878,429
4. Step 4: Simplify right side
   7,140,739x = 118,340,217,508,041
5. Step 5: Solve for x
   x = 118,340,217,508,041/7,140,739
6. Step 6: Final answer
   x = 16,572,544.87