Finding the Third Proportional to 28,393.88 and 42,590.81

Step by Step Solution

1. Step 1: Write the proportion equation
   28,393.88 : 42,590.81 = 42,590.81 : x
2. Step 2: Convert to fraction form
   28,393.88/42,590.81 = 42,590.81/x
3. Step 3: Cross multiply
   28,393.88x = 42,590.81 × 42,590.81
4. Step 4: Simplify right side
   28,393.88x = 1,813,977,309.41
5. Step 5: Solve for x
   x = 1,813,977,309.41/28,393.88
6. Step 6: Final answer
   x = 63,886.22