Finding the Third Proportional to 118,408.50 and 261,741.38

Step by Step Solution

1. Step 1: Write the proportion equation
   118,408.50 : 261,741.38 = 261,741.38 : x
2. Step 2: Convert to fraction form
   118,408.50/261,741.38 = 261,741.38/x
3. Step 3: Cross multiply
   118,408.50x = 261,741.38 × 261,741.38
4. Step 4: Simplify right side
   118,408.50x = 68,508,547,386.89
5. Step 5: Solve for x
   x = 68,508,547,386.89/118,408.50
6. Step 6: Final answer
   x = 578,577.95