Finding the Third Proportional to 70,704 and 148,678.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,704 : 148,678.50 = 148,678.50 : x
2. Step 2: Convert to fraction form
   70,704/148,678.50 = 148,678.50/x
3. Step 3: Cross multiply
   70,704x = 148,678.50 × 148,678.50
4. Step 4: Simplify right side
   70,704x = 22,105,296,362.25
5. Step 5: Solve for x
   x = 22,105,296,362.25/70,704
6. Step 6: Final answer
   x = 312,645.63