Finding the Third Proportional to 130,913.25 and 200,178

Step by Step Solution

1. Step 1: Write the proportion equation
   130,913.25 : 200,178 = 200,178 : x
2. Step 2: Convert to fraction form
   130,913.25/200,178 = 200,178/x
3. Step 3: Cross multiply
   130,913.25x = 200,178 × 200,178
4. Step 4: Simplify right side
   130,913.25x = 40,071,231,684
5. Step 5: Solve for x
   x = 40,071,231,684/130,913.25
6. Step 6: Final answer
   x = 306,089.96