Finding the Third Proportional to 320,364 and 704,677.50

Step by Step Solution

1. Step 1: Write the proportion equation
   320,364 : 704,677.50 = 704,677.50 : x
2. Step 2: Convert to fraction form
   320,364/704,677.50 = 704,677.50/x
3. Step 3: Cross multiply
   320,364x = 704,677.50 × 704,677.50
4. Step 4: Simplify right side
   320,364x = 496,570,379,006.25
5. Step 5: Solve for x
   x = 496,570,379,006.25/320,364
6. Step 6: Final answer
   x = 1,550,019.29