Finding the Third Proportional to 222,520 and 493,086

Step by Step Solution

1. Step 1: Write the proportion equation
   222,520 : 493,086 = 493,086 : x
2. Step 2: Convert to fraction form
   222,520/493,086 = 493,086/x
3. Step 3: Cross multiply
   222,520x = 493,086 × 493,086
4. Step 4: Simplify right side
   222,520x = 243,133,803,396
5. Step 5: Solve for x
   x = 243,133,803,396/222,520
6. Step 6: Final answer
   x = 1,092,637.98