Finding the Third Proportional to 104,066 and 221,090

Step by Step Solution

1. Step 1: Write the proportion equation
   104,066 : 221,090 = 221,090 : x
2. Step 2: Convert to fraction form
   104,066/221,090 = 221,090/x
3. Step 3: Cross multiply
   104,066x = 221,090 × 221,090
4. Step 4: Simplify right side
   104,066x = 48,880,788,100
5. Step 5: Solve for x
   x = 48,880,788,100/104,066
6. Step 6: Final answer
   x = 469,709.49