Finding the Third Proportional to 70,320 and 143,251

Step by Step Solution

1. Step 1: Write the proportion equation
   70,320 : 143,251 = 143,251 : x
2. Step 2: Convert to fraction form
   70,320/143,251 = 143,251/x
3. Step 3: Cross multiply
   70,320x = 143,251 × 143,251
4. Step 4: Simplify right side
   70,320x = 20,520,849,001
5. Step 5: Solve for x
   x = 20,520,849,001/70,320
6. Step 6: Final answer
   x = 291,820.95