Finding the Third Proportional to 99,234 and 213,444

Step by Step Solution

1. Step 1: Write the proportion equation
   99,234 : 213,444 = 213,444 : x
2. Step 2: Convert to fraction form
   99,234/213,444 = 213,444/x
3. Step 3: Cross multiply
   99,234x = 213,444 × 213,444
4. Step 4: Simplify right side
   99,234x = 45,558,341,136
5. Step 5: Solve for x
   x = 45,558,341,136/99,234
6. Step 6: Final answer
   x = 459,100.12