Finding the Third Proportional to 36,215.50 and 78,460.50

Step by Step Solution

1. Step 1: Write the proportion equation
   36,215.50 : 78,460.50 = 78,460.50 : x
2. Step 2: Convert to fraction form
   36,215.50/78,460.50 = 78,460.50/x
3. Step 3: Cross multiply
   36,215.50x = 78,460.50 × 78,460.50
4. Step 4: Simplify right side
   36,215.50x = 6,156,050,060.25
5. Step 5: Solve for x
   x = 6,156,050,060.25/36,215.50
6. Step 6: Final answer
   x = 169,983.85