Finding the Third Proportional to 641,523 and 998,005.50

Step by Step Solution

1. Step 1: Write the proportion equation
   641,523 : 998,005.50 = 998,005.50 : x
2. Step 2: Convert to fraction form
   641,523/998,005.50 = 998,005.50/x
3. Step 3: Cross multiply
   641,523x = 998,005.50 × 998,005.50
4. Step 4: Simplify right side
   641,523x = 996,014,978,030.25
5. Step 5: Solve for x
   x = 996,014,978,030.25/641,523
6. Step 6: Final answer
   x = 1,552,578.75