Finding the Third Proportional to 69,031.50 and 147,895.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,031.50 : 147,895.50 = 147,895.50 : x
2. Step 2: Convert to fraction form
   69,031.50/147,895.50 = 147,895.50/x
3. Step 3: Cross multiply
   69,031.50x = 147,895.50 × 147,895.50
4. Step 4: Simplify right side
   69,031.50x = 21,873,078,920.25
5. Step 5: Solve for x
   x = 21,873,078,920.25/69,031.50
6. Step 6: Final answer
   x = 316,856.49