Finding the Third Proportional to 12,186,365.50 and 17,906,390

Step by Step Solution

1. Step 1: Write the proportion equation
   12,186,365.50 : 17,906,390 = 17,906,390 : x
2. Step 2: Convert to fraction form
   12,186,365.50/17,906,390 = 17,906,390/x
3. Step 3: Cross multiply
   12,186,365.50x = 17,906,390 × 17,906,390
4. Step 4: Simplify right side
   12,186,365.50x = 320,638,802,832,100
5. Step 5: Solve for x
   x = 320,638,802,832,100/12,186,365.50
6. Step 6: Final answer
   x = 26,311,274.09