Finding the Third Proportional to 42,810.19 and 68,178.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,810.19 : 68,178.94 = 68,178.94 : x
2. Step 2: Convert to fraction form
   42,810.19/68,178.94 = 68,178.94/x
3. Step 3: Cross multiply
   42,810.19x = 68,178.94 × 68,178.94
4. Step 4: Simplify right side
   42,810.19x = 4,648,367,518.63
5. Step 5: Solve for x
   x = 4,648,367,518.63/42,810.19
6. Step 6: Final answer
   x = 108,580.87