Finding the Third Proportional to 103,123.13 and 140,499.56

Step by Step Solution

1. Step 1: Write the proportion equation
   103,123.13 : 140,499.56 = 140,499.56 : x
2. Step 2: Convert to fraction form
   103,123.13/140,499.56 = 140,499.56/x
3. Step 3: Cross multiply
   103,123.13x = 140,499.56 × 140,499.56
4. Step 4: Simplify right side
   103,123.13x = 19,740,127,062.69
5. Step 5: Solve for x
   x = 19,740,127,062.69/103,123.13
6. Step 6: Final answer
   x = 191,422.89