Finding the Third Proportional to 417,042 and 910,537.50

Step by Step Solution

1. Step 1: Write the proportion equation
   417,042 : 910,537.50 = 910,537.50 : x
2. Step 2: Convert to fraction form
   417,042/910,537.50 = 910,537.50/x
3. Step 3: Cross multiply
   417,042x = 910,537.50 × 910,537.50
4. Step 4: Simplify right side
   417,042x = 829,078,538,906.25
5. Step 5: Solve for x
   x = 829,078,538,906.25/417,042
6. Step 6: Final answer
   x = 1,987,997.71