Finding the Third Proportional to 28,272.75 and 42,473.25

Step by Step Solution

1. Step 1: Write the proportion equation
   28,272.75 : 42,473.25 = 42,473.25 : x
2. Step 2: Convert to fraction form
   28,272.75/42,473.25 = 42,473.25/x
3. Step 3: Cross multiply
   28,272.75x = 42,473.25 × 42,473.25
4. Step 4: Simplify right side
   28,272.75x = 1,803,976,965.56
5. Step 5: Solve for x
   x = 1,803,976,965.56/28,272.75
6. Step 6: Final answer
   x = 63,806.21