Finding the Third Proportional to 42,216.19 and 59,374.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,216.19 : 59,374.69 = 59,374.69 : x
2. Step 2: Convert to fraction form
   42,216.19/59,374.69 = 59,374.69/x
3. Step 3: Cross multiply
   42,216.19x = 59,374.69 × 59,374.69
4. Step 4: Simplify right side
   42,216.19x = 3,525,353,515.72
5. Step 5: Solve for x
   x = 3,525,353,515.72/42,216.19
6. Step 6: Final answer
   x = 83,507.15