Finding the Third Proportional to 45,319.50 and 68,239.13

Step by Step Solution

1. Step 1: Write the proportion equation
   45,319.50 : 68,239.13 = 68,239.13 : x
2. Step 2: Convert to fraction form
   45,319.50/68,239.13 = 68,239.13/x
3. Step 3: Cross multiply
   45,319.50x = 68,239.13 × 68,239.13
4. Step 4: Simplify right side
   45,319.50x = 4,656,578,180.77
5. Step 5: Solve for x
   x = 4,656,578,180.77/45,319.50
6. Step 6: Final answer
   x = 102,749.99