Finding the Third Proportional to 70,425 and 109,957.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,425 : 109,957.50 = 109,957.50 : x
2. Step 2: Convert to fraction form
   70,425/109,957.50 = 109,957.50/x
3. Step 3: Cross multiply
   70,425x = 109,957.50 × 109,957.50
4. Step 4: Simplify right side
   70,425x = 12,090,651,806.25
5. Step 5: Solve for x
   x = 12,090,651,806.25/70,425
6. Step 6: Final answer
   x = 171,681.25