Finding the Third Proportional to 8,519,488.50 and 18,338,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,519,488.50 : 18,338,055.50 = 18,338,055.50 : x
2. Step 2: Convert to fraction form
   8,519,488.50/18,338,055.50 = 18,338,055.50/x
3. Step 3: Cross multiply
   8,519,488.50x = 18,338,055.50 × 18,338,055.50
4. Step 4: Simplify right side
   8,519,488.50x = 336,284,279,521,080.25
5. Step 5: Solve for x
   x = 336,284,279,521,080.25/8,519,488.50
6. Step 6: Final answer
   x = 39,472,355.59