Finding the Third Proportional to 70,465.50 and 145,588.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,465.50 : 145,588.50 = 145,588.50 : x
2. Step 2: Convert to fraction form
   70,465.50/145,588.50 = 145,588.50/x
3. Step 3: Cross multiply
   70,465.50x = 145,588.50 × 145,588.50
4. Step 4: Simplify right side
   70,465.50x = 21,196,011,332.25
5. Step 5: Solve for x
   x = 21,196,011,332.25/70,465.50
6. Step 6: Final answer
   x = 300,799.84