Finding the Third Proportional to 146,709.47 and 309,180.72

Step by Step Solution

1. Step 1: Write the proportion equation
   146,709.47 : 309,180.72 = 309,180.72 : x
2. Step 2: Convert to fraction form
   146,709.47/309,180.72 = 309,180.72/x
3. Step 3: Cross multiply
   146,709.47x = 309,180.72 × 309,180.72
4. Step 4: Simplify right side
   146,709.47x = 95,592,716,242.89
5. Step 5: Solve for x
   x = 95,592,716,242.89/146,709.47
6. Step 6: Final answer
   x = 651,578.36