Finding the Third Proportional to 69,543 and 104,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,543 : 104,638.50 = 104,638.50 : x
2. Step 2: Convert to fraction form
   69,543/104,638.50 = 104,638.50/x
3. Step 3: Cross multiply
   69,543x = 104,638.50 × 104,638.50
4. Step 4: Simplify right side
   69,543x = 10,949,215,682.25
5. Step 5: Solve for x
   x = 10,949,215,682.25/69,543
6. Step 6: Final answer
   x = 157,445.26