Finding the Third Proportional to 189,288 and 416,983.50

Step by Step Solution

1. Step 1: Write the proportion equation
   189,288 : 416,983.50 = 416,983.50 : x
2. Step 2: Convert to fraction form
   189,288/416,983.50 = 416,983.50/x
3. Step 3: Cross multiply
   189,288x = 416,983.50 × 416,983.50
4. Step 4: Simplify right side
   189,288x = 173,875,239,272.25
5. Step 5: Solve for x
   x = 173,875,239,272.25/189,288
6. Step 6: Final answer
   x = 918,575.08