Finding the Third Proportional to 28,630.25 and 42,813.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,630.25 : 42,813.75 = 42,813.75 : x
2. Step 2: Convert to fraction form
   28,630.25/42,813.75 = 42,813.75/x
3. Step 3: Cross multiply
   28,630.25x = 42,813.75 × 42,813.75
4. Step 4: Simplify right side
   28,630.25x = 1,833,017,189.06
5. Step 5: Solve for x
   x = 1,833,017,189.06/28,630.25
6. Step 6: Final answer
   x = 64,023.79