Finding the Third Proportional to 69,208.50 and 103,812.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,208.50 : 103,812.50 = 103,812.50 : x
2. Step 2: Convert to fraction form
   69,208.50/103,812.50 = 103,812.50/x
3. Step 3: Cross multiply
   69,208.50x = 103,812.50 × 103,812.50
4. Step 4: Simplify right side
   69,208.50x = 10,777,035,156.25
5. Step 5: Solve for x
   x = 10,777,035,156.25/69,208.50
6. Step 6: Final answer
   x = 155,718.38