Finding the Third Proportional to 141,115.50 and 301,900.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,115.50 : 301,900.50 = 301,900.50 : x
2. Step 2: Convert to fraction form
   141,115.50/301,900.50 = 301,900.50/x
3. Step 3: Cross multiply
   141,115.50x = 301,900.50 × 301,900.50
4. Step 4: Simplify right side
   141,115.50x = 91,143,911,900.25
5. Step 5: Solve for x
   x = 91,143,911,900.25/141,115.50
6. Step 6: Final answer
   x = 645,881.65