Finding the Third Proportional to 114,453 and 131,139

Step by Step Solution

1. Step 1: Write the proportion equation
   114,453 : 131,139 = 131,139 : x
2. Step 2: Convert to fraction form
   114,453/131,139 = 131,139/x
3. Step 3: Cross multiply
   114,453x = 131,139 × 131,139
4. Step 4: Simplify right side
   114,453x = 17,197,437,321
5. Step 5: Solve for x
   x = 17,197,437,321/114,453
6. Step 6: Final answer
   x = 150,257.64