Finding the Third Proportional to 29,317.50 and 69,138.50

Step by Step Solution

1. Step 1: Write the proportion equation
   29,317.50 : 69,138.50 = 69,138.50 : x
2. Step 2: Convert to fraction form
   29,317.50/69,138.50 = 69,138.50/x
3. Step 3: Cross multiply
   29,317.50x = 69,138.50 × 69,138.50
4. Step 4: Simplify right side
   29,317.50x = 4,780,132,182.25
5. Step 5: Solve for x
   x = 4,780,132,182.25/29,317.50
6. Step 6: Final answer
   x = 163,047.06