Finding the Third Proportional to 71,784.56 and 105,456.94

Step by Step Solution

1. Step 1: Write the proportion equation
   71,784.56 : 105,456.94 = 105,456.94 : x
2. Step 2: Convert to fraction form
   71,784.56/105,456.94 = 105,456.94/x
3. Step 3: Cross multiply
   71,784.56x = 105,456.94 × 105,456.94
4. Step 4: Simplify right side
   71,784.56x = 11,121,165,666.88
5. Step 5: Solve for x
   x = 11,121,165,666.88/71,784.56
6. Step 6: Final answer
   x = 154,924.20