Finding the Third Proportional to 1,394,663.50 and 2,155,111

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394,663.50 : 2,155,111 = 2,155,111 : x
2. Step 2: Convert to fraction form
   1,394,663.50/2,155,111 = 2,155,111/x
3. Step 3: Cross multiply
   1,394,663.50x = 2,155,111 × 2,155,111
4. Step 4: Simplify right side
   1,394,663.50x = 4,644,503,422,321
5. Step 5: Solve for x
   x = 4,644,503,422,321/1,394,663.50
6. Step 6: Final answer
   x = 3,330,196.44