Finding the Third Proportional to 130,338 and 201,491.50

Step by Step Solution

1. Step 1: Write the proportion equation
   130,338 : 201,491.50 = 201,491.50 : x
2. Step 2: Convert to fraction form
   130,338/201,491.50 = 201,491.50/x
3. Step 3: Cross multiply
   130,338x = 201,491.50 × 201,491.50
4. Step 4: Simplify right side
   130,338x = 40,598,824,572.25
5. Step 5: Solve for x
   x = 40,598,824,572.25/130,338
6. Step 6: Final answer
   x = 311,488.78