Finding the Third Proportional to 91,188 and 140,076

Step by Step Solution

1. Step 1: Write the proportion equation
   91,188 : 140,076 = 140,076 : x
2. Step 2: Convert to fraction form
   91,188/140,076 = 140,076/x
3. Step 3: Cross multiply
   91,188x = 140,076 × 140,076
4. Step 4: Simplify right side
   91,188x = 19,621,285,776
5. Step 5: Solve for x
   x = 19,621,285,776/91,188
6. Step 6: Final answer
   x = 215,173.99