Finding the Third Proportional to 109,351.50 and 178,560

Step by Step Solution

1. Step 1: Write the proportion equation
   109,351.50 : 178,560 = 178,560 : x
2. Step 2: Convert to fraction form
   109,351.50/178,560 = 178,560/x
3. Step 3: Cross multiply
   109,351.50x = 178,560 × 178,560
4. Step 4: Simplify right side
   109,351.50x = 31,883,673,600
5. Step 5: Solve for x
   x = 31,883,673,600/109,351.50
6. Step 6: Final answer
   x = 291,570.52