Finding the Third Proportional to 28,252.13 and 42,742.69

Step by Step Solution

1. Step 1: Write the proportion equation
   28,252.13 : 42,742.69 = 42,742.69 : x
2. Step 2: Convert to fraction form
   28,252.13/42,742.69 = 42,742.69/x
3. Step 3: Cross multiply
   28,252.13x = 42,742.69 × 42,742.69
4. Step 4: Simplify right side
   28,252.13x = 1,826,937,334.72
5. Step 5: Solve for x
   x = 1,826,937,334.72/28,252.13
6. Step 6: Final answer
   x = 64,665.48