Finding the Third Proportional to 70,479 and 100,210.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,479 : 100,210.50 = 100,210.50 : x
2. Step 2: Convert to fraction form
   70,479/100,210.50 = 100,210.50/x
3. Step 3: Cross multiply
   70,479x = 100,210.50 × 100,210.50
4. Step 4: Simplify right side
   70,479x = 10,042,144,310.25
5. Step 5: Solve for x
   x = 10,042,144,310.25/70,479
6. Step 6: Final answer
   x = 142,484.21