Finding the Third Proportional to 518,463 and 804,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,463 : 804,667.50 = 804,667.50 : x
2. Step 2: Convert to fraction form
   518,463/804,667.50 = 804,667.50/x
3. Step 3: Cross multiply
   518,463x = 804,667.50 × 804,667.50
4. Step 4: Simplify right side
   518,463x = 647,489,785,556.25
5. Step 5: Solve for x
   x = 647,489,785,556.25/518,463
6. Step 6: Final answer
   x = 1,248,864.02