Finding the Third Proportional to 28,066.50 and 42,909.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,066.50 : 42,909.75 = 42,909.75 : x
2. Step 2: Convert to fraction form
   28,066.50/42,909.75 = 42,909.75/x
3. Step 3: Cross multiply
   28,066.50x = 42,909.75 × 42,909.75
4. Step 4: Simplify right side
   28,066.50x = 1,841,246,645.06
5. Step 5: Solve for x
   x = 1,841,246,645.06/28,066.50
6. Step 6: Final answer
   x = 65,603.00