Finding the Third Proportional to 19,780.50 and 26,422.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,780.50 : 26,422.50 = 26,422.50 : x
2. Step 2: Convert to fraction form
   19,780.50/26,422.50 = 26,422.50/x
3. Step 3: Cross multiply
   19,780.50x = 26,422.50 × 26,422.50
4. Step 4: Simplify right side
   19,780.50x = 698,148,506.25
5. Step 5: Solve for x
   x = 698,148,506.25/19,780.50
6. Step 6: Final answer
   x = 35,294.79