Finding the Third Proportional to 214,446.50 and 458,342

Step by Step Solution

1. Step 1: Write the proportion equation
   214,446.50 : 458,342 = 458,342 : x
2. Step 2: Convert to fraction form
   214,446.50/458,342 = 458,342/x
3. Step 3: Cross multiply
   214,446.50x = 458,342 × 458,342
4. Step 4: Simplify right side
   214,446.50x = 210,077,388,964
5. Step 5: Solve for x
   x = 210,077,388,964/214,446.50
6. Step 6: Final answer
   x = 979,626.10