Finding the Third Proportional to 117,807.75 and 261,738

Step by Step Solution

1. Step 1: Write the proportion equation
   117,807.75 : 261,738 = 261,738 : x
2. Step 2: Convert to fraction form
   117,807.75/261,738 = 261,738/x
3. Step 3: Cross multiply
   117,807.75x = 261,738 × 261,738
4. Step 4: Simplify right side
   117,807.75x = 68,506,780,644
5. Step 5: Solve for x
   x = 68,506,780,644/117,807.75
6. Step 6: Final answer
   x = 581,513.36