Finding the Third Proportional to 70,656 and 149,491.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,656 : 149,491.50 = 149,491.50 : x
2. Step 2: Convert to fraction form
   70,656/149,491.50 = 149,491.50/x
3. Step 3: Cross multiply
   70,656x = 149,491.50 × 149,491.50
4. Step 4: Simplify right side
   70,656x = 22,347,708,572.25
5. Step 5: Solve for x
   x = 22,347,708,572.25/70,656
6. Step 6: Final answer
   x = 316,288.90