Finding the Third Proportional to 214,098 and 321,145.50

Step by Step Solution

1. Step 1: Write the proportion equation
   214,098 : 321,145.50 = 321,145.50 : x
2. Step 2: Convert to fraction form
   214,098/321,145.50 = 321,145.50/x
3. Step 3: Cross multiply
   214,098x = 321,145.50 × 321,145.50
4. Step 4: Simplify right side
   214,098x = 103,134,432,170.25
5. Step 5: Solve for x
   x = 103,134,432,170.25/214,098
6. Step 6: Final answer
   x = 481,716.00