Finding the Third Proportional to 219,796.50 and 478,959

Step by Step Solution

1. Step 1: Write the proportion equation
   219,796.50 : 478,959 = 478,959 : x
2. Step 2: Convert to fraction form
   219,796.50/478,959 = 478,959/x
3. Step 3: Cross multiply
   219,796.50x = 478,959 × 478,959
4. Step 4: Simplify right side
   219,796.50x = 229,401,723,681
5. Step 5: Solve for x
   x = 229,401,723,681/219,796.50
6. Step 6: Final answer
   x = 1,043,700.53