Finding the Third Proportional to 393,114 and 842,320.50

Step by Step Solution

1. Step 1: Write the proportion equation
   393,114 : 842,320.50 = 842,320.50 : x
2. Step 2: Convert to fraction form
   393,114/842,320.50 = 842,320.50/x
3. Step 3: Cross multiply
   393,114x = 842,320.50 × 842,320.50
4. Step 4: Simplify right side
   393,114x = 709,503,824,720.25
5. Step 5: Solve for x
   x = 709,503,824,720.25/393,114
6. Step 6: Final answer
   x = 1,804,829.71