Finding the Third Proportional to 42,068 and 70,111

Step by Step Solution

1. Step 1: Write the proportion equation
   42,068 : 70,111 = 70,111 : x
2. Step 2: Convert to fraction form
   42,068/70,111 = 70,111/x
3. Step 3: Cross multiply
   42,068x = 70,111 × 70,111
4. Step 4: Simplify right side
   42,068x = 4,915,552,321
5. Step 5: Solve for x
   x = 4,915,552,321/42,068
6. Step 6: Final answer
   x = 116,847.78