Finding the Third Proportional to 272,695.50 and 636,904

Step by Step Solution

1. Step 1: Write the proportion equation
   272,695.50 : 636,904 = 636,904 : x
2. Step 2: Convert to fraction form
   272,695.50/636,904 = 636,904/x
3. Step 3: Cross multiply
   272,695.50x = 636,904 × 636,904
4. Step 4: Simplify right side
   272,695.50x = 405,646,705,216
5. Step 5: Solve for x
   x = 405,646,705,216/272,695.50
6. Step 6: Final answer
   x = 1,487,544.55