Finding the Third Proportional to 222,522 and 493,090

Step by Step Solution

1. Step 1: Write the proportion equation
   222,522 : 493,090 = 493,090 : x
2. Step 2: Convert to fraction form
   222,522/493,090 = 493,090/x
3. Step 3: Cross multiply
   222,522x = 493,090 × 493,090
4. Step 4: Simplify right side
   222,522x = 243,137,748,100
5. Step 5: Solve for x
   x = 243,137,748,100/222,522
6. Step 6: Final answer
   x = 1,092,645.89