Finding the Third Proportional to 19,990.55 and 26,530.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,990.55 : 26,530.72 = 26,530.72 : x
2. Step 2: Convert to fraction form
   19,990.55/26,530.72 = 26,530.72/x
3. Step 3: Cross multiply
   19,990.55x = 26,530.72 × 26,530.72
4. Step 4: Simplify right side
   19,990.55x = 703,879,283.53
5. Step 5: Solve for x
   x = 703,879,283.53/19,990.55
6. Step 6: Final answer
   x = 35,210.61