Finding the Third Proportional to 272,566.69 and 400,978.69

Step by Step Solution

1. Step 1: Write the proportion equation
   272,566.69 : 400,978.69 = 400,978.69 : x
2. Step 2: Convert to fraction form
   272,566.69/400,978.69 = 400,978.69/x
3. Step 3: Cross multiply
   272,566.69x = 400,978.69 × 400,978.69
4. Step 4: Simplify right side
   272,566.69x = 160,783,907,829.22
5. Step 5: Solve for x
   x = 160,783,907,829.22/272,566.69
6. Step 6: Final answer
   x = 589,888.33