Finding the Third Proportional to 178,605 and 242,565.50

Step by Step Solution

1. Step 1: Write the proportion equation
   178,605 : 242,565.50 = 242,565.50 : x
2. Step 2: Convert to fraction form
   178,605/242,565.50 = 242,565.50/x
3. Step 3: Cross multiply
   178,605x = 242,565.50 × 242,565.50
4. Step 4: Simplify right side
   178,605x = 58,838,021,790.25
5. Step 5: Solve for x
   x = 58,838,021,790.25/178,605
6. Step 6: Final answer
   x = 329,430.99