Finding the Third Proportional to 129,322.13 and 189,061.88

Step by Step Solution

1. Step 1: Write the proportion equation
   129,322.13 : 189,061.88 = 189,061.88 : x
2. Step 2: Convert to fraction form
   129,322.13/189,061.88 = 189,061.88/x
3. Step 3: Cross multiply
   129,322.13x = 189,061.88 × 189,061.88
4. Step 4: Simplify right side
   129,322.13x = 35,744,392,578.52
5. Step 5: Solve for x
   x = 35,744,392,578.52/129,322.13
6. Step 6: Final answer
   x = 276,398.12