Finding the Third Proportional to 28,621.50 and 42,104.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,621.50 : 42,104.50 = 42,104.50 : x
2. Step 2: Convert to fraction form
   28,621.50/42,104.50 = 42,104.50/x
3. Step 3: Cross multiply
   28,621.50x = 42,104.50 × 42,104.50
4. Step 4: Simplify right side
   28,621.50x = 1,772,788,920.25
5. Step 5: Solve for x
   x = 1,772,788,920.25/28,621.50
6. Step 6: Final answer
   x = 61,939.06