Finding the Third Proportional to 181,485 and 288,272.25

Step by Step Solution

1. Step 1: Write the proportion equation
   181,485 : 288,272.25 = 288,272.25 : x
2. Step 2: Convert to fraction form
   181,485/288,272.25 = 288,272.25/x
3. Step 3: Cross multiply
   181,485x = 288,272.25 × 288,272.25
4. Step 4: Simplify right side
   181,485x = 83,100,890,120.06
5. Step 5: Solve for x
   x = 83,100,890,120.06/181,485
6. Step 6: Final answer
   x = 457,893.99