Finding the Third Proportional to 90,036 and 208,444

Step by Step Solution

1. Step 1: Write the proportion equation
   90,036 : 208,444 = 208,444 : x
2. Step 2: Convert to fraction form
   90,036/208,444 = 208,444/x
3. Step 3: Cross multiply
   90,036x = 208,444 × 208,444
4. Step 4: Simplify right side
   90,036x = 43,448,901,136
5. Step 5: Solve for x
   x = 43,448,901,136/90,036
6. Step 6: Final answer
   x = 482,572.54