Finding the Third Proportional to 20,374.50 and 42,961.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,374.50 : 42,961.50 = 42,961.50 : x
2. Step 2: Convert to fraction form
   20,374.50/42,961.50 = 42,961.50/x
3. Step 3: Cross multiply
   20,374.50x = 42,961.50 × 42,961.50
4. Step 4: Simplify right side
   20,374.50x = 1,845,690,482.25
5. Step 5: Solve for x
   x = 1,845,690,482.25/20,374.50
6. Step 6: Final answer
   x = 90,588.26