Finding the Third Proportional to 70,664 and 147,072

Step by Step Solution

1. Step 1: Write the proportion equation
   70,664 : 147,072 = 147,072 : x
2. Step 2: Convert to fraction form
   70,664/147,072 = 147,072/x
3. Step 3: Cross multiply
   70,664x = 147,072 × 147,072
4. Step 4: Simplify right side
   70,664x = 21,630,173,184
5. Step 5: Solve for x
   x = 21,630,173,184/70,664
6. Step 6: Final answer
   x = 306,098.91