Finding the Third Proportional to 394,492.50 and 862,803

Step by Step Solution

1. Step 1: Write the proportion equation
   394,492.50 : 862,803 = 862,803 : x
2. Step 2: Convert to fraction form
   394,492.50/862,803 = 862,803/x
3. Step 3: Cross multiply
   394,492.50x = 862,803 × 862,803
4. Step 4: Simplify right side
   394,492.50x = 744,429,016,809
5. Step 5: Solve for x
   x = 744,429,016,809/394,492.50
6. Step 6: Final answer
   x = 1,887,054.93