Finding the Third Proportional to 127,415 and 191,442

Step by Step Solution

1. Step 1: Write the proportion equation
   127,415 : 191,442 = 191,442 : x
2. Step 2: Convert to fraction form
   127,415/191,442 = 191,442/x
3. Step 3: Cross multiply
   127,415x = 191,442 × 191,442
4. Step 4: Simplify right side
   127,415x = 36,650,039,364
5. Step 5: Solve for x
   x = 36,650,039,364/127,415
6. Step 6: Final answer
   x = 287,643.05