Finding the Third Proportional to 138,906.56 and 214,131.94

Step by Step Solution

1. Step 1: Write the proportion equation
   138,906.56 : 214,131.94 = 214,131.94 : x
2. Step 2: Convert to fraction form
   138,906.56/214,131.94 = 214,131.94/x
3. Step 3: Cross multiply
   138,906.56x = 214,131.94 × 214,131.94
4. Step 4: Simplify right side
   138,906.56x = 45,852,486,657.50
5. Step 5: Solve for x
   x = 45,852,486,657.50/138,906.56
6. Step 6: Final answer
   x = 330,095.90