Finding the Third Proportional to 641,925 and 993,424.50

Step by Step Solution

1. Step 1: Write the proportion equation
   641,925 : 993,424.50 = 993,424.50 : x
2. Step 2: Convert to fraction form
   641,925/993,424.50 = 993,424.50/x
3. Step 3: Cross multiply
   641,925x = 993,424.50 × 993,424.50
4. Step 4: Simplify right side
   641,925x = 986,892,237,200.25
5. Step 5: Solve for x
   x = 986,892,237,200.25/641,925
6. Step 6: Final answer
   x = 1,537,394.92