Finding the Third Proportional to 170,140 and 243,546

Step by Step Solution

1. Step 1: Write the proportion equation
   170,140 : 243,546 = 243,546 : x
2. Step 2: Convert to fraction form
   170,140/243,546 = 243,546/x
3. Step 3: Cross multiply
   170,140x = 243,546 × 243,546
4. Step 4: Simplify right side
   170,140x = 59,314,654,116
5. Step 5: Solve for x
   x = 59,314,654,116/170,140
6. Step 6: Final answer
   x = 348,622.63