Finding the Third Proportional to 9,143,736 and 12,538,552.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,143,736 : 12,538,552.50 = 12,538,552.50 : x
2. Step 2: Convert to fraction form
   9,143,736/12,538,552.50 = 12,538,552.50/x
3. Step 3: Cross multiply
   9,143,736x = 12,538,552.50 × 12,538,552.50
4. Step 4: Simplify right side
   9,143,736x = 157,215,298,795,256.25
5. Step 5: Solve for x
   x = 157,215,298,795,256.25/9,143,736
6. Step 6: Final answer
   x = 17,193,770.55