Finding the Third Proportional to 13,856,929.50 and 19,960,287

Step by Step Solution

1. Step 1: Write the proportion equation
   13,856,929.50 : 19,960,287 = 19,960,287 : x
2. Step 2: Convert to fraction form
   13,856,929.50/19,960,287 = 19,960,287/x
3. Step 3: Cross multiply
   13,856,929.50x = 19,960,287 × 19,960,287
4. Step 4: Simplify right side
   13,856,929.50x = 398,413,057,122,369
5. Step 5: Solve for x
   x = 398,413,057,122,369/13,856,929.50
6. Step 6: Final answer
   x = 28,751,900.42