Finding the Third Proportional to 43,210 and 70,558

Step by Step Solution

1. Step 1: Write the proportion equation
   43,210 : 70,558 = 70,558 : x
2. Step 2: Convert to fraction form
   43,210/70,558 = 70,558/x
3. Step 3: Cross multiply
   43,210x = 70,558 × 70,558
4. Step 4: Simplify right side
   43,210x = 4,978,431,364
5. Step 5: Solve for x
   x = 4,978,431,364/43,210
6. Step 6: Final answer
   x = 115,214.80