Finding the Third Proportional to 51,909.19 and 74,230.17

Step by Step Solution

1. Step 1: Write the proportion equation
   51,909.19 : 74,230.17 = 74,230.17 : x
2. Step 2: Convert to fraction form
   51,909.19/74,230.17 = 74,230.17/x
3. Step 3: Cross multiply
   51,909.19x = 74,230.17 × 74,230.17
4. Step 4: Simplify right side
   51,909.19x = 5,510,118,416.59
5. Step 5: Solve for x
   x = 5,510,118,416.59/51,909.19
6. Step 6: Final answer
   x = 106,149.19