Finding the Third Proportional to 28,412.50 and 42,618.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,412.50 : 42,618.50 = 42,618.50 : x
2. Step 2: Convert to fraction form
   28,412.50/42,618.50 = 42,618.50/x
3. Step 3: Cross multiply
   28,412.50x = 42,618.50 × 42,618.50
4. Step 4: Simplify right side
   28,412.50x = 1,816,336,542.25
5. Step 5: Solve for x
   x = 1,816,336,542.25/28,412.50
6. Step 6: Final answer
   x = 63,927.38