Finding the Third Proportional to 28,708 and 42,119

Step by Step Solution

1. Step 1: Write the proportion equation
   28,708 : 42,119 = 42,119 : x
2. Step 2: Convert to fraction form
   28,708/42,119 = 42,119/x
3. Step 3: Cross multiply
   28,708x = 42,119 × 42,119
4. Step 4: Simplify right side
   28,708x = 1,774,010,161
5. Step 5: Solve for x
   x = 1,774,010,161/28,708
6. Step 6: Final answer
   x = 61,794.98