Finding the Third Proportional to 131,310 and 208,447.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,310 : 208,447.50 = 208,447.50 : x
2. Step 2: Convert to fraction form
   131,310/208,447.50 = 208,447.50/x
3. Step 3: Cross multiply
   131,310x = 208,447.50 × 208,447.50
4. Step 4: Simplify right side
   131,310x = 43,450,360,256.25
5. Step 5: Solve for x
   x = 43,450,360,256.25/131,310
6. Step 6: Final answer
   x = 330,899.10