Finding the Third Proportional to 142,490.50 and 304,050.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,490.50 : 304,050.50 = 304,050.50 : x
2. Step 2: Convert to fraction form
   142,490.50/304,050.50 = 304,050.50/x
3. Step 3: Cross multiply
   142,490.50x = 304,050.50 × 304,050.50
4. Step 4: Simplify right side
   142,490.50x = 92,446,706,550.25
5. Step 5: Solve for x
   x = 92,446,706,550.25/142,490.50
6. Step 6: Final answer
   x = 648,792.07