Finding the Third Proportional to 222,091.50 and 316,525.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,091.50 : 316,525.50 = 316,525.50 : x
2. Step 2: Convert to fraction form
   222,091.50/316,525.50 = 316,525.50/x
3. Step 3: Cross multiply
   222,091.50x = 316,525.50 × 316,525.50
4. Step 4: Simplify right side
   222,091.50x = 100,188,392,150.25
5. Step 5: Solve for x
   x = 100,188,392,150.25/222,091.50
6. Step 6: Final answer
   x = 451,113.13