Finding the Third Proportional to 30,688.50 and 45,060

Step by Step Solution

1. Step 1: Write the proportion equation
   30,688.50 : 45,060 = 45,060 : x
2. Step 2: Convert to fraction form
   30,688.50/45,060 = 45,060/x
3. Step 3: Cross multiply
   30,688.50x = 45,060 × 45,060
4. Step 4: Simplify right side
   30,688.50x = 2,030,403,600
5. Step 5: Solve for x
   x = 2,030,403,600/30,688.50
6. Step 6: Final answer
   x = 66,161.71