Finding the Third Proportional to 103,392 and 136,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,392 : 136,111.50 = 136,111.50 : x
2. Step 2: Convert to fraction form
   103,392/136,111.50 = 136,111.50/x
3. Step 3: Cross multiply
   103,392x = 136,111.50 × 136,111.50
4. Step 4: Simplify right side
   103,392x = 18,526,340,432.25
5. Step 5: Solve for x
   x = 18,526,340,432.25/103,392
6. Step 6: Final answer
   x = 179,185.43