Finding the Third Proportional to 69,108 and 145,595.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,108 : 145,595.50 = 145,595.50 : x
2. Step 2: Convert to fraction form
   69,108/145,595.50 = 145,595.50/x
3. Step 3: Cross multiply
   69,108x = 145,595.50 × 145,595.50
4. Step 4: Simplify right side
   69,108x = 21,198,049,620.25
5. Step 5: Solve for x
   x = 21,198,049,620.25/69,108
6. Step 6: Final answer
   x = 306,738.00