Finding the Third Proportional to 219,312 and 471,888

Step by Step Solution

1. Step 1: Write the proportion equation
   219,312 : 471,888 = 471,888 : x
2. Step 2: Convert to fraction form
   219,312/471,888 = 471,888/x
3. Step 3: Cross multiply
   219,312x = 471,888 × 471,888
4. Step 4: Simplify right side
   219,312x = 222,678,284,544
5. Step 5: Solve for x
   x = 222,678,284,544/219,312
6. Step 6: Final answer
   x = 1,015,349.29