Finding the Third Proportional to 21,420 and 44,779.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,420 : 44,779.50 = 44,779.50 : x
2. Step 2: Convert to fraction form
   21,420/44,779.50 = 44,779.50/x
3. Step 3: Cross multiply
   21,420x = 44,779.50 × 44,779.50
4. Step 4: Simplify right side
   21,420x = 2,005,203,620.25
5. Step 5: Solve for x
   x = 2,005,203,620.25/21,420
6. Step 6: Final answer
   x = 93,613.61