Finding the Third Proportional to 55,607.38 and 131,213

Step by Step Solution

1. Step 1: Write the proportion equation
   55,607.38 : 131,213 = 131,213 : x
2. Step 2: Convert to fraction form
   55,607.38/131,213 = 131,213/x
3. Step 3: Cross multiply
   55,607.38x = 131,213 × 131,213
4. Step 4: Simplify right side
   55,607.38x = 17,216,851,369
5. Step 5: Solve for x
   x = 17,216,851,369/55,607.38
6. Step 6: Final answer
   x = 309,614.53