Finding the Third Proportional to 8,512,159.50 and 12,856,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,512,159.50 : 12,856,513.50 = 12,856,513.50 : x
2. Step 2: Convert to fraction form
   8,512,159.50/12,856,513.50 = 12,856,513.50/x
3. Step 3: Cross multiply
   8,512,159.50x = 12,856,513.50 × 12,856,513.50
4. Step 4: Simplify right side
   8,512,159.50x = 165,289,939,375,682.25
5. Step 5: Solve for x
   x = 165,289,939,375,682.25/8,512,159.50
6. Step 6: Final answer
   x = 19,418,097.06