Finding the Third Proportional to 140,419.50 and 304,484.25

Step by Step Solution

1. Step 1: Write the proportion equation
   140,419.50 : 304,484.25 = 304,484.25 : x
2. Step 2: Convert to fraction form
   140,419.50/304,484.25 = 304,484.25/x
3. Step 3: Cross multiply
   140,419.50x = 304,484.25 × 304,484.25
4. Step 4: Simplify right side
   140,419.50x = 92,710,658,498.06
5. Step 5: Solve for x
   x = 92,710,658,498.06/140,419.50
6. Step 6: Final answer
   x = 660,240.63