Finding the Third Proportional to 815,616 and 1,756,224

Step by Step Solution

1. Step 1: Write the proportion equation
   815,616 : 1,756,224 = 1,756,224 : x
2. Step 2: Convert to fraction form
   815,616/1,756,224 = 1,756,224/x
3. Step 3: Cross multiply
   815,616x = 1,756,224 × 1,756,224
4. Step 4: Simplify right side
   815,616x = 3,084,322,738,176
5. Step 5: Solve for x
   x = 3,084,322,738,176/815,616
6. Step 6: Final answer
   x = 3,781,586.85