Finding the Third Proportional to 295,596 and 646,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   295,596 : 646,402.50 = 646,402.50 : x
2. Step 2: Convert to fraction form
   295,596/646,402.50 = 646,402.50/x
3. Step 3: Cross multiply
   295,596x = 646,402.50 × 646,402.50
4. Step 4: Simplify right side
   295,596x = 417,836,192,006.25
5. Step 5: Solve for x
   x = 417,836,192,006.25/295,596
6. Step 6: Final answer
   x = 1,413,538.05