Finding the Third Proportional to 641,601 and 993,343.50

Step by Step Solution

1. Step 1: Write the proportion equation
   641,601 : 993,343.50 = 993,343.50 : x
2. Step 2: Convert to fraction form
   641,601/993,343.50 = 993,343.50/x
3. Step 3: Cross multiply
   641,601x = 993,343.50 × 993,343.50
4. Step 4: Simplify right side
   641,601x = 986,731,308,992.25
5. Step 5: Solve for x
   x = 986,731,308,992.25/641,601
6. Step 6: Final answer
   x = 1,537,920.47