Finding the Third Proportional to 70,489 and 103,786.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,489 : 103,786.50 = 103,786.50 : x
2. Step 2: Convert to fraction form
   70,489/103,786.50 = 103,786.50/x
3. Step 3: Cross multiply
   70,489x = 103,786.50 × 103,786.50
4. Step 4: Simplify right side
   70,489x = 10,771,637,582.25
5. Step 5: Solve for x
   x = 10,771,637,582.25/70,489
6. Step 6: Final answer
   x = 152,813.03