Finding the Third Proportional to 33,220 and 51,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,220 : 51,490.50 = 51,490.50 : x
2. Step 2: Convert to fraction form
   33,220/51,490.50 = 51,490.50/x
3. Step 3: Cross multiply
   33,220x = 51,490.50 × 51,490.50
4. Step 4: Simplify right side
   33,220x = 2,651,271,590.25
5. Step 5: Solve for x
   x = 2,651,271,590.25/33,220
6. Step 6: Final answer
   x = 79,809.50