Finding the Third Proportional to 163,613 and 342,047

Step by Step Solution

1. Step 1: Write the proportion equation
   163,613 : 342,047 = 342,047 : x
2. Step 2: Convert to fraction form
   163,613/342,047 = 342,047/x
3. Step 3: Cross multiply
   163,613x = 342,047 × 342,047
4. Step 4: Simplify right side
   163,613x = 116,996,150,209
5. Step 5: Solve for x
   x = 116,996,150,209/163,613
6. Step 6: Final answer
   x = 715,078.57