Finding the Third Proportional to 31,365 and 67,047

Step by Step Solution

1. Step 1: Write the proportion equation
   31,365 : 67,047 = 67,047 : x
2. Step 2: Convert to fraction form
   31,365/67,047 = 67,047/x
3. Step 3: Cross multiply
   31,365x = 67,047 × 67,047
4. Step 4: Simplify right side
   31,365x = 4,495,300,209
5. Step 5: Solve for x
   x = 4,495,300,209/31,365
6. Step 6: Final answer
   x = 143,322.18