Finding the Third Proportional to 86,269.50 and 115,938

Step by Step Solution

1. Step 1: Write the proportion equation
   86,269.50 : 115,938 = 115,938 : x
2. Step 2: Convert to fraction form
   86,269.50/115,938 = 115,938/x
3. Step 3: Cross multiply
   86,269.50x = 115,938 × 115,938
4. Step 4: Simplify right side
   86,269.50x = 13,441,619,844
5. Step 5: Solve for x
   x = 13,441,619,844/86,269.50
6. Step 6: Final answer
   x = 155,809.64