Finding the Third Proportional to 18,103.50 and 37,570.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,103.50 : 37,570.50 = 37,570.50 : x
2. Step 2: Convert to fraction form
   18,103.50/37,570.50 = 37,570.50/x
3. Step 3: Cross multiply
   18,103.50x = 37,570.50 × 37,570.50
4. Step 4: Simplify right side
   18,103.50x = 1,411,542,470.25
5. Step 5: Solve for x
   x = 1,411,542,470.25/18,103.50
6. Step 6: Final answer
   x = 77,970.69