Finding the Third Proportional to 28,279.88 and 42,009.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,279.88 : 42,009.75 = 42,009.75 : x
2. Step 2: Convert to fraction form
   28,279.88/42,009.75 = 42,009.75/x
3. Step 3: Cross multiply
   28,279.88x = 42,009.75 × 42,009.75
4. Step 4: Simplify right side
   28,279.88x = 1,764,819,095.06
5. Step 5: Solve for x
   x = 1,764,819,095.06/28,279.88
6. Step 6: Final answer
   x = 62,405.48