Finding the Third Proportional to 18,987.47 and 40,896.56

Step by Step Solution

1. Step 1: Write the proportion equation
   18,987.47 : 40,896.56 = 40,896.56 : x
2. Step 2: Convert to fraction form
   18,987.47/40,896.56 = 40,896.56/x
3. Step 3: Cross multiply
   18,987.47x = 40,896.56 × 40,896.56
4. Step 4: Simplify right side
   18,987.47x = 1,672,528,824.32
5. Step 5: Solve for x
   x = 1,672,528,824.32/18,987.47
6. Step 6: Final answer
   x = 88,085.93