Finding the Third Proportional to 70,217 and 153,570.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,217 : 153,570.50 = 153,570.50 : x
2. Step 2: Convert to fraction form
   70,217/153,570.50 = 153,570.50/x
3. Step 3: Cross multiply
   70,217x = 153,570.50 × 153,570.50
4. Step 4: Simplify right side
   70,217x = 23,583,898,470.25
5. Step 5: Solve for x
   x = 23,583,898,470.25/70,217
6. Step 6: Final answer
   x = 335,871.63