Finding the Third Proportional to 224,820 and 487,507.50

Step by Step Solution

1. Step 1: Write the proportion equation
   224,820 : 487,507.50 = 487,507.50 : x
2. Step 2: Convert to fraction form
   224,820/487,507.50 = 487,507.50/x
3. Step 3: Cross multiply
   224,820x = 487,507.50 × 487,507.50
4. Step 4: Simplify right side
   224,820x = 237,663,562,556.25
5. Step 5: Solve for x
   x = 237,663,562,556.25/224,820
6. Step 6: Final answer
   x = 1,057,128.20