Finding the Third Proportional to 101,787 and 222,431.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,787 : 222,431.50 = 222,431.50 : x
2. Step 2: Convert to fraction form
   101,787/222,431.50 = 222,431.50/x
3. Step 3: Cross multiply
   101,787x = 222,431.50 × 222,431.50
4. Step 4: Simplify right side
   101,787x = 49,475,772,192.25
5. Step 5: Solve for x
   x = 49,475,772,192.25/101,787
6. Step 6: Final answer
   x = 486,071.62