Finding the Third Proportional to 98,316 and 215,030

Step by Step Solution

1. Step 1: Write the proportion equation
   98,316 : 215,030 = 215,030 : x
2. Step 2: Convert to fraction form
   98,316/215,030 = 215,030/x
3. Step 3: Cross multiply
   98,316x = 215,030 × 215,030
4. Step 4: Simplify right side
   98,316x = 46,237,900,900
5. Step 5: Solve for x
   x = 46,237,900,900/98,316
6. Step 6: Final answer
   x = 470,298.84