Finding the Third Proportional to 216,362 and 472,090

Step by Step Solution

1. Step 1: Write the proportion equation
   216,362 : 472,090 = 472,090 : x
2. Step 2: Convert to fraction form
   216,362/472,090 = 472,090/x
3. Step 3: Cross multiply
   216,362x = 472,090 × 472,090
4. Step 4: Simplify right side
   216,362x = 222,868,968,100
5. Step 5: Solve for x
   x = 222,868,968,100/216,362
6. Step 6: Final answer
   x = 1,030,074.45