Finding the Third Proportional to 128,981.81 and 185,781.94

Step by Step Solution

1. Step 1: Write the proportion equation
   128,981.81 : 185,781.94 = 185,781.94 : x
2. Step 2: Convert to fraction form
   128,981.81/185,781.94 = 185,781.94/x
3. Step 3: Cross multiply
   128,981.81x = 185,781.94 × 185,781.94
4. Step 4: Simplify right side
   128,981.81x = 34,514,928,301.25
5. Step 5: Solve for x
   x = 34,514,928,301.25/128,981.81
6. Step 6: Final answer
   x = 267,595.31