Finding the Third Proportional to 101,811.50 and 210,607

Step by Step Solution

1. Step 1: Write the proportion equation
   101,811.50 : 210,607 = 210,607 : x
2. Step 2: Convert to fraction form
   101,811.50/210,607 = 210,607/x
3. Step 3: Cross multiply
   101,811.50x = 210,607 × 210,607
4. Step 4: Simplify right side
   101,811.50x = 44,355,308,449
5. Step 5: Solve for x
   x = 44,355,308,449/101,811.50
6. Step 6: Final answer
   x = 435,661.08