Finding the Third Proportional to 85,392 and 128,362.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,392 : 128,362.50 = 128,362.50 : x
2. Step 2: Convert to fraction form
   85,392/128,362.50 = 128,362.50/x
3. Step 3: Cross multiply
   85,392x = 128,362.50 × 128,362.50
4. Step 4: Simplify right side
   85,392x = 16,476,931,406.25
5. Step 5: Solve for x
   x = 16,476,931,406.25/85,392
6. Step 6: Final answer
   x = 192,956.38