Finding the Third Proportional to 17,780.50 and 36,006.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,780.50 : 36,006.50 = 36,006.50 : x
2. Step 2: Convert to fraction form
   17,780.50/36,006.50 = 36,006.50/x
3. Step 3: Cross multiply
   17,780.50x = 36,006.50 × 36,006.50
4. Step 4: Simplify right side
   17,780.50x = 1,296,468,042.25
5. Step 5: Solve for x
   x = 1,296,468,042.25/17,780.50
6. Step 6: Final answer
   x = 72,915.16