Finding the Third Proportional to 99,008 and 216,730

Step by Step Solution

1. Step 1: Write the proportion equation
   99,008 : 216,730 = 216,730 : x
2. Step 2: Convert to fraction form
   99,008/216,730 = 216,730/x
3. Step 3: Cross multiply
   99,008x = 216,730 × 216,730
4. Step 4: Simplify right side
   99,008x = 46,971,892,900
5. Step 5: Solve for x
   x = 46,971,892,900/99,008
6. Step 6: Final answer
   x = 474,425.23