Finding the Third Proportional to 645,444 and 1,404,884.25

Step by Step Solution

1. Step 1: Write the proportion equation
   645,444 : 1,404,884.25 = 1,404,884.25 : x
2. Step 2: Convert to fraction form
   645,444/1,404,884.25 = 1,404,884.25/x
3. Step 3: Cross multiply
   645,444x = 1,404,884.25 × 1,404,884.25
4. Step 4: Simplify right side
   645,444x = 1,973,699,755,898.06
5. Step 5: Solve for x
   x = 1,973,699,755,898.06/645,444
6. Step 6: Final answer
   x = 3,057,894.65