Finding the Third Proportional to 139,750.50 and 301,631.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139,750.50 : 301,631.25 = 301,631.25 : x
2. Step 2: Convert to fraction form
   139,750.50/301,631.25 = 301,631.25/x
3. Step 3: Cross multiply
   139,750.50x = 301,631.25 × 301,631.25
4. Step 4: Simplify right side
   139,750.50x = 90,981,410,976.56
5. Step 5: Solve for x
   x = 90,981,410,976.56/139,750.50
6. Step 6: Final answer
   x = 651,027.45