Finding the Third Proportional to 42,534 and 70,611.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,534 : 70,611.75 = 70,611.75 : x
2. Step 2: Convert to fraction form
   42,534/70,611.75 = 70,611.75/x
3. Step 3: Cross multiply
   42,534x = 70,611.75 × 70,611.75
4. Step 4: Simplify right side
   42,534x = 4,986,019,238.06
5. Step 5: Solve for x
   x = 4,986,019,238.06/42,534
6. Step 6: Final answer
   x = 117,224.32