Finding the Third Proportional to 118,611 and 283,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,611 : 283,513.50 = 283,513.50 : x
2. Step 2: Convert to fraction form
   118,611/283,513.50 = 283,513.50/x
3. Step 3: Cross multiply
   118,611x = 283,513.50 × 283,513.50
4. Step 4: Simplify right side
   118,611x = 80,379,904,682.25
5. Step 5: Solve for x
   x = 80,379,904,682.25/118,611
6. Step 6: Final answer
   x = 677,676.65