Finding the Third Proportional to 196,108.25 and 276,157.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,108.25 : 276,157.50 = 276,157.50 : x
2. Step 2: Convert to fraction form
   196,108.25/276,157.50 = 276,157.50/x
3. Step 3: Cross multiply
   196,108.25x = 276,157.50 × 276,157.50
4. Step 4: Simplify right side
   196,108.25x = 76,262,964,806.25
5. Step 5: Solve for x
   x = 76,262,964,806.25/196,108.25
6. Step 6: Final answer
   x = 388,881.98