Finding the Third Proportional to 5,418,019.50 and 7,429,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,418,019.50 : 7,429,480.50 = 7,429,480.50 : x
2. Step 2: Convert to fraction form
   5,418,019.50/7,429,480.50 = 7,429,480.50/x
3. Step 3: Cross multiply
   5,418,019.50x = 7,429,480.50 × 7,429,480.50
4. Step 4: Simplify right side
   5,418,019.50x = 55,197,180,499,880.25
5. Step 5: Solve for x
   x = 55,197,180,499,880.25/5,418,019.50
6. Step 6: Final answer
   x = 10,187,704.29