Finding the Third Proportional to 221,984 and 488,160

Step by Step Solution

1. Step 1: Write the proportion equation
   221,984 : 488,160 = 488,160 : x
2. Step 2: Convert to fraction form
   221,984/488,160 = 488,160/x
3. Step 3: Cross multiply
   221,984x = 488,160 × 488,160
4. Step 4: Simplify right side
   221,984x = 238,300,185,600
5. Step 5: Solve for x
   x = 238,300,185,600/221,984
6. Step 6: Final answer
   x = 1,073,501.63