Finding the Third Proportional to 39,142 and 52,437.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,142 : 52,437.50 = 52,437.50 : x
2. Step 2: Convert to fraction form
   39,142/52,437.50 = 52,437.50/x
3. Step 3: Cross multiply
   39,142x = 52,437.50 × 52,437.50
4. Step 4: Simplify right side
   39,142x = 2,749,691,406.25
5. Step 5: Solve for x
   x = 2,749,691,406.25/39,142
6. Step 6: Final answer
   x = 70,249.13