Finding the Third Proportional to 34,339.50 and 51,990.75

Step by Step Solution

1. Step 1: Write the proportion equation
   34,339.50 : 51,990.75 = 51,990.75 : x
2. Step 2: Convert to fraction form
   34,339.50/51,990.75 = 51,990.75/x
3. Step 3: Cross multiply
   34,339.50x = 51,990.75 × 51,990.75
4. Step 4: Simplify right side
   34,339.50x = 2,703,038,085.56
5. Step 5: Solve for x
   x = 2,703,038,085.56/34,339.50
6. Step 6: Final answer
   x = 78,715.13