Finding the Third Proportional to 28,528.31 and 42,797.81

Step by Step Solution

1. Step 1: Write the proportion equation
   28,528.31 : 42,797.81 = 42,797.81 : x
2. Step 2: Convert to fraction form
   28,528.31/42,797.81 = 42,797.81/x
3. Step 3: Cross multiply
   28,528.31x = 42,797.81 × 42,797.81
4. Step 4: Simplify right side
   28,528.31x = 1,831,652,754.79
5. Step 5: Solve for x
   x = 1,831,652,754.79/28,528.31
6. Step 6: Final answer
   x = 64,204.74