Finding the Third Proportional to 68,520 and 152,610.75

Step by Step Solution

1. Step 1: Write the proportion equation
   68,520 : 152,610.75 = 152,610.75 : x
2. Step 2: Convert to fraction form
   68,520/152,610.75 = 152,610.75/x
3. Step 3: Cross multiply
   68,520x = 152,610.75 × 152,610.75
4. Step 4: Simplify right side
   68,520x = 23,290,041,015.56
5. Step 5: Solve for x
   x = 23,290,041,015.56/68,520
6. Step 6: Final answer
   x = 339,901.36