Finding the Third Proportional to 425,890.50 and 864,297

Step by Step Solution

1. Step 1: Write the proportion equation
   425,890.50 : 864,297 = 864,297 : x
2. Step 2: Convert to fraction form
   425,890.50/864,297 = 864,297/x
3. Step 3: Cross multiply
   425,890.50x = 864,297 × 864,297
4. Step 4: Simplify right side
   425,890.50x = 747,009,304,209
5. Step 5: Solve for x
   x = 747,009,304,209/425,890.50
6. Step 6: Final answer
   x = 1,753,993.82