Finding the Third Proportional to 99,711 and 216,097.88

Step by Step Solution

1. Step 1: Write the proportion equation
   99,711 : 216,097.88 = 216,097.88 : x
2. Step 2: Convert to fraction form
   99,711/216,097.88 = 216,097.88/x
3. Step 3: Cross multiply
   99,711x = 216,097.88 × 216,097.88
4. Step 4: Simplify right side
   99,711x = 46,698,291,579.52
5. Step 5: Solve for x
   x = 46,698,291,579.52/99,711
6. Step 6: Final answer
   x = 468,336.41