Finding the Third Proportional to 293,995 and 644,037.50

Step by Step Solution

1. Step 1: Write the proportion equation
   293,995 : 644,037.50 = 644,037.50 : x
2. Step 2: Convert to fraction form
   293,995/644,037.50 = 644,037.50/x
3. Step 3: Cross multiply
   293,995x = 644,037.50 × 644,037.50
4. Step 4: Simplify right side
   293,995x = 414,784,301,406.25
5. Step 5: Solve for x
   x = 414,784,301,406.25/293,995
6. Step 6: Final answer
   x = 1,410,854.95