Finding the Third Proportional to 143,607 and 301,909.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,607 : 301,909.50 = 301,909.50 : x
2. Step 2: Convert to fraction form
   143,607/301,909.50 = 301,909.50/x
3. Step 3: Cross multiply
   143,607x = 301,909.50 × 301,909.50
4. Step 4: Simplify right side
   143,607x = 91,149,346,190.25
5. Step 5: Solve for x
   x = 91,149,346,190.25/143,607
6. Step 6: Final answer
   x = 634,713.81