Finding the Third Proportional to 342,117.42 and 492,804

Step by Step Solution

1. Step 1: Write the proportion equation
   342,117.42 : 492,804 = 492,804 : x
2. Step 2: Convert to fraction form
   342,117.42/492,804 = 492,804/x
3. Step 3: Cross multiply
   342,117.42x = 492,804 × 492,804
4. Step 4: Simplify right side
   342,117.42x = 242,855,782,416
5. Step 5: Solve for x
   x = 242,855,782,416/342,117.42
6. Step 6: Final answer
   x = 709,860.90