Finding the Third Proportional to 227,758.50 and 498,419.50

Step by Step Solution

1. Step 1: Write the proportion equation
   227,758.50 : 498,419.50 = 498,419.50 : x
2. Step 2: Convert to fraction form
   227,758.50/498,419.50 = 498,419.50/x
3. Step 3: Cross multiply
   227,758.50x = 498,419.50 × 498,419.50
4. Step 4: Simplify right side
   227,758.50x = 248,421,997,980.25
5. Step 5: Solve for x
   x = 248,421,997,980.25/227,758.50
6. Step 6: Final answer
   x = 1,090,725.47