Finding the Third Proportional to 102,331.69 and 218,690.72

Step by Step Solution

1. Step 1: Write the proportion equation
   102,331.69 : 218,690.72 = 218,690.72 : x
2. Step 2: Convert to fraction form
   102,331.69/218,690.72 = 218,690.72/x
3. Step 3: Cross multiply
   102,331.69x = 218,690.72 × 218,690.72
4. Step 4: Simplify right side
   102,331.69x = 47,825,630,467.39
5. Step 5: Solve for x
   x = 47,825,630,467.39/102,331.69
6. Step 6: Final answer
   x = 467,358.95