Finding the Third Proportional to 70,213.50 and 151,699.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,213.50 : 151,699.50 = 151,699.50 : x
2. Step 2: Convert to fraction form
   70,213.50/151,699.50 = 151,699.50/x
3. Step 3: Cross multiply
   70,213.50x = 151,699.50 × 151,699.50
4. Step 4: Simplify right side
   70,213.50x = 23,012,738,300.25
5. Step 5: Solve for x
   x = 23,012,738,300.25/70,213.50
6. Step 6: Final answer
   x = 327,753.76