Finding the Third Proportional to 19,830 and 26,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,830 : 26,436.50 = 26,436.50 : x
2. Step 2: Convert to fraction form
   19,830/26,436.50 = 26,436.50/x
3. Step 3: Cross multiply
   19,830x = 26,436.50 × 26,436.50
4. Step 4: Simplify right side
   19,830x = 698,888,532.25
5. Step 5: Solve for x
   x = 698,888,532.25/19,830
6. Step 6: Final answer
   x = 35,244.00