Finding the Third Proportional to 130,980 and 200,230.50

Step by Step Solution

1. Step 1: Write the proportion equation
   130,980 : 200,230.50 = 200,230.50 : x
2. Step 2: Convert to fraction form
   130,980/200,230.50 = 200,230.50/x
3. Step 3: Cross multiply
   130,980x = 200,230.50 × 200,230.50
4. Step 4: Simplify right side
   130,980x = 40,092,253,130.25
5. Step 5: Solve for x
   x = 40,092,253,130.25/130,980
6. Step 6: Final answer
   x = 306,094.47