Finding the Third Proportional to 127,872 and 191,810

Step by Step Solution

1. Step 1: Write the proportion equation
   127,872 : 191,810 = 191,810 : x
2. Step 2: Convert to fraction form
   127,872/191,810 = 191,810/x
3. Step 3: Cross multiply
   127,872x = 191,810 × 191,810
4. Step 4: Simplify right side
   127,872x = 36,791,076,100
5. Step 5: Solve for x
   x = 36,791,076,100/127,872
6. Step 6: Final answer
   x = 287,718.00