Finding the Third Proportional to 70,276.50 and 143,156.25

Step by Step Solution

1. Step 1: Write the proportion equation
   70,276.50 : 143,156.25 = 143,156.25 : x
2. Step 2: Convert to fraction form
   70,276.50/143,156.25 = 143,156.25/x
3. Step 3: Cross multiply
   70,276.50x = 143,156.25 × 143,156.25
4. Step 4: Simplify right side
   70,276.50x = 20,493,711,914.06
5. Step 5: Solve for x
   x = 20,493,711,914.06/70,276.50
6. Step 6: Final answer
   x = 291,615.43