Finding the Third Proportional to 220,822 and 478,984

Step by Step Solution

1. Step 1: Write the proportion equation
   220,822 : 478,984 = 478,984 : x
2. Step 2: Convert to fraction form
   220,822/478,984 = 478,984/x
3. Step 3: Cross multiply
   220,822x = 478,984 × 478,984
4. Step 4: Simplify right side
   220,822x = 229,425,672,256
5. Step 5: Solve for x
   x = 229,425,672,256/220,822
6. Step 6: Final answer
   x = 1,038,962.02