Finding the Third Proportional to 99,254 and 216,003

Step by Step Solution

1. Step 1: Write the proportion equation
   99,254 : 216,003 = 216,003 : x
2. Step 2: Convert to fraction form
   99,254/216,003 = 216,003/x
3. Step 3: Cross multiply
   99,254x = 216,003 × 216,003
4. Step 4: Simplify right side
   99,254x = 46,657,296,009
5. Step 5: Solve for x
   x = 46,657,296,009/99,254
6. Step 6: Final answer
   x = 470,079.76