Finding the Third Proportional to 19,990.55 and 37,384.03

Step by Step Solution

1. Step 1: Write the proportion equation
   19,990.55 : 37,384.03 = 37,384.03 : x
2. Step 2: Convert to fraction form
   19,990.55/37,384.03 = 37,384.03/x
3. Step 3: Cross multiply
   19,990.55x = 37,384.03 × 37,384.03
4. Step 4: Simplify right side
   19,990.55x = 1,397,565,792.50
5. Step 5: Solve for x
   x = 1,397,565,792.50/19,990.55
6. Step 6: Final answer
   x = 69,911.33