Finding the Third Proportional to 53,620 and 70,510

Step by Step Solution

1. Step 1: Write the proportion equation
   53,620 : 70,510 = 70,510 : x
2. Step 2: Convert to fraction form
   53,620/70,510 = 70,510/x
3. Step 3: Cross multiply
   53,620x = 70,510 × 70,510
4. Step 4: Simplify right side
   53,620x = 4,971,660,100
5. Step 5: Solve for x
   x = 4,971,660,100/53,620
6. Step 6: Final answer
   x = 92,720.26