Finding the Third Proportional to 112,153.50 and 186,921

Step by Step Solution

1. Step 1: Write the proportion equation
   112,153.50 : 186,921 = 186,921 : x
2. Step 2: Convert to fraction form
   112,153.50/186,921 = 186,921/x
3. Step 3: Cross multiply
   112,153.50x = 186,921 × 186,921
4. Step 4: Simplify right side
   112,153.50x = 34,939,460,241
5. Step 5: Solve for x
   x = 34,939,460,241/112,153.50
6. Step 6: Final answer
   x = 311,532.50