Finding the Third Proportional to 60,830 and 130,066

Step by Step Solution

1. Step 1: Write the proportion equation
   60,830 : 130,066 = 130,066 : x
2. Step 2: Convert to fraction form
   60,830/130,066 = 130,066/x
3. Step 3: Cross multiply
   60,830x = 130,066 × 130,066
4. Step 4: Simplify right side
   60,830x = 16,917,164,356
5. Step 5: Solve for x
   x = 16,917,164,356/60,830
6. Step 6: Final answer
   x = 278,105.61