Finding the Third Proportional to 644,994 and 1,404,193.50

Step by Step Solution

1. Step 1: Write the proportion equation
   644,994 : 1,404,193.50 = 1,404,193.50 : x
2. Step 2: Convert to fraction form
   644,994/1,404,193.50 = 1,404,193.50/x
3. Step 3: Cross multiply
   644,994x = 1,404,193.50 × 1,404,193.50
4. Step 4: Simplify right side
   644,994x = 1,971,759,385,442.25
5. Step 5: Solve for x
   x = 1,971,759,385,442.25/644,994
6. Step 6: Final answer
   x = 3,057,019.73