Finding the Third Proportional to 86,261 and 118,783.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,261 : 118,783.50 = 118,783.50 : x
2. Step 2: Convert to fraction form
   86,261/118,783.50 = 118,783.50/x
3. Step 3: Cross multiply
   86,261x = 118,783.50 × 118,783.50
4. Step 4: Simplify right side
   86,261x = 14,109,519,872.25
5. Step 5: Solve for x
   x = 14,109,519,872.25/86,261
6. Step 6: Final answer
   x = 163,567.78