Finding the Third Proportional to 99,490.50 and 214,742

Step by Step Solution

1. Step 1: Write the proportion equation
   99,490.50 : 214,742 = 214,742 : x
2. Step 2: Convert to fraction form
   99,490.50/214,742 = 214,742/x
3. Step 3: Cross multiply
   99,490.50x = 214,742 × 214,742
4. Step 4: Simplify right side
   99,490.50x = 46,114,126,564
5. Step 5: Solve for x
   x = 46,114,126,564/99,490.50
6. Step 6: Final answer
   x = 463,502.81