Finding the Third Proportional to 214,440 and 458,329.50

Step by Step Solution

1. Step 1: Write the proportion equation
   214,440 : 458,329.50 = 458,329.50 : x
2. Step 2: Convert to fraction form
   214,440/458,329.50 = 458,329.50/x
3. Step 3: Cross multiply
   214,440x = 458,329.50 × 458,329.50
4. Step 4: Simplify right side
   214,440x = 210,065,930,570.25
5. Step 5: Solve for x
   x = 210,065,930,570.25/214,440
6. Step 6: Final answer
   x = 979,602.36