Finding the Third Proportional to 242,818 and 367,613.50

Step by Step Solution

1. Step 1: Write the proportion equation
   242,818 : 367,613.50 = 367,613.50 : x
2. Step 2: Convert to fraction form
   242,818/367,613.50 = 367,613.50/x
3. Step 3: Cross multiply
   242,818x = 367,613.50 × 367,613.50
4. Step 4: Simplify right side
   242,818x = 135,139,685,382.25
5. Step 5: Solve for x
   x = 135,139,685,382.25/242,818
6. Step 6: Final answer
   x = 556,547.23