Finding the Third Proportional to 27,889.50 and 42,487.69

Step by Step Solution

1. Step 1: Write the proportion equation
   27,889.50 : 42,487.69 = 42,487.69 : x
2. Step 2: Convert to fraction form
   27,889.50/42,487.69 = 42,487.69/x
3. Step 3: Cross multiply
   27,889.50x = 42,487.69 × 42,487.69
4. Step 4: Simplify right side
   27,889.50x = 1,805,203,589.10
5. Step 5: Solve for x
   x = 1,805,203,589.10/27,889.50
6. Step 6: Final answer
   x = 64,727.00