Finding the Third Proportional to 30,712.50 and 60,702.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,712.50 : 60,702.75 = 60,702.75 : x
2. Step 2: Convert to fraction form
   30,712.50/60,702.75 = 60,702.75/x
3. Step 3: Cross multiply
   30,712.50x = 60,702.75 × 60,702.75
4. Step 4: Simplify right side
   30,712.50x = 3,684,823,857.56
5. Step 5: Solve for x
   x = 3,684,823,857.56/30,712.50
6. Step 6: Final answer
   x = 119,977.98