Finding the Third Proportional to 146,709.25 and 309,180.25

Step by Step Solution

1. Step 1: Write the proportion equation
   146,709.25 : 309,180.25 = 309,180.25 : x
2. Step 2: Convert to fraction form
   146,709.25/309,180.25 = 309,180.25/x
3. Step 3: Cross multiply
   146,709.25x = 309,180.25 × 309,180.25
4. Step 4: Simplify right side
   146,709.25x = 95,592,426,990.06
5. Step 5: Solve for x
   x = 95,592,426,990.06/146,709.25
6. Step 6: Final answer
   x = 651,577.37