Finding the Third Proportional to 12,195,330 and 17,956,072.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,195,330 : 17,956,072.50 = 17,956,072.50 : x
2. Step 2: Convert to fraction form
   12,195,330/17,956,072.50 = 17,956,072.50/x
3. Step 3: Cross multiply
   12,195,330x = 17,956,072.50 × 17,956,072.50
4. Step 4: Simplify right side
   12,195,330x = 322,420,539,625,256.25
5. Step 5: Solve for x
   x = 322,420,539,625,256.25/12,195,330
6. Step 6: Final answer
   x = 26,438,033.22