Finding the Third Proportional to 142,474.50 and 304,018.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,474.50 : 304,018.50 = 304,018.50 : x
2. Step 2: Convert to fraction form
   142,474.50/304,018.50 = 304,018.50/x
3. Step 3: Cross multiply
   142,474.50x = 304,018.50 × 304,018.50
4. Step 4: Simplify right side
   142,474.50x = 92,427,248,342.25
5. Step 5: Solve for x
   x = 92,427,248,342.25/142,474.50
6. Step 6: Final answer
   x = 648,728.36