Finding the Third Proportional to 27,129 and 42,001.50

Step by Step Solution

1. Step 1: Write the proportion equation
   27,129 : 42,001.50 = 42,001.50 : x
2. Step 2: Convert to fraction form
   27,129/42,001.50 = 42,001.50/x
3. Step 3: Cross multiply
   27,129x = 42,001.50 × 42,001.50
4. Step 4: Simplify right side
   27,129x = 1,764,126,002.25
5. Step 5: Solve for x
   x = 1,764,126,002.25/27,129
6. Step 6: Final answer
   x = 65,027.31