Finding the Third Proportional to 71,123.06 and 105,089.91

Step by Step Solution

1. Step 1: Write the proportion equation
   71,123.06 : 105,089.91 = 105,089.91 : x
2. Step 2: Convert to fraction form
   71,123.06/105,089.91 = 105,089.91/x
3. Step 3: Cross multiply
   71,123.06x = 105,089.91 × 105,089.91
4. Step 4: Simplify right side
   71,123.06x = 11,043,888,395.63
5. Step 5: Solve for x
   x = 11,043,888,395.63/71,123.06
6. Step 6: Final answer
   x = 155,278.58