Finding the Third Proportional to 161,457 and 248,998.50

Step by Step Solution

1. Step 1: Write the proportion equation
   161,457 : 248,998.50 = 248,998.50 : x
2. Step 2: Convert to fraction form
   161,457/248,998.50 = 248,998.50/x
3. Step 3: Cross multiply
   161,457x = 248,998.50 × 248,998.50
4. Step 4: Simplify right side
   161,457x = 62,000,253,002.25
5. Step 5: Solve for x
   x = 62,000,253,002.25/161,457
6. Step 6: Final answer
   x = 384,004.74