Finding the Third Proportional to 70,699.50 and 146,320.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,699.50 : 146,320.50 = 146,320.50 : x
2. Step 2: Convert to fraction form
   70,699.50/146,320.50 = 146,320.50/x
3. Step 3: Cross multiply
   70,699.50x = 146,320.50 × 146,320.50
4. Step 4: Simplify right side
   70,699.50x = 21,409,688,720.25
5. Step 5: Solve for x
   x = 21,409,688,720.25/70,699.50
6. Step 6: Final answer
   x = 302,826.59