Finding the Third Proportional to 34,688 and 54,875.50

Step by Step Solution

1. Step 1: Write the proportion equation
   34,688 : 54,875.50 = 54,875.50 : x
2. Step 2: Convert to fraction form
   34,688/54,875.50 = 54,875.50/x
3. Step 3: Cross multiply
   34,688x = 54,875.50 × 54,875.50
4. Step 4: Simplify right side
   34,688x = 3,011,320,500.25
5. Step 5: Solve for x
   x = 3,011,320,500.25/34,688
6. Step 6: Final answer
   x = 86,811.59