Finding the Third Proportional to 415,540.69 and 909,901.69

Step by Step Solution

1. Step 1: Write the proportion equation
   415,540.69 : 909,901.69 = 909,901.69 : x
2. Step 2: Convert to fraction form
   415,540.69/909,901.69 = 909,901.69/x
3. Step 3: Cross multiply
   415,540.69x = 909,901.69 × 909,901.69
4. Step 4: Simplify right side
   415,540.69x = 827,921,080,915.35
5. Step 5: Solve for x
   x = 827,921,080,915.35/415,540.69
6. Step 6: Final answer
   x = 1,992,394.74