Finding the Third Proportional to 242,947.69 and 381,079.69

Step by Step Solution

1. Step 1: Write the proportion equation
   242,947.69 : 381,079.69 = 381,079.69 : x
2. Step 2: Convert to fraction form
   242,947.69/381,079.69 = 381,079.69/x
3. Step 3: Cross multiply
   242,947.69x = 381,079.69 × 381,079.69
4. Step 4: Simplify right side
   242,947.69x = 145,221,728,225.10
5. Step 5: Solve for x
   x = 145,221,728,225.10/242,947.69
6. Step 6: Final answer
   x = 597,748.96