Finding the Third Proportional to 42,780 and 62,226

Step by Step Solution

1. Step 1: Write the proportion equation
   42,780 : 62,226 = 62,226 : x
2. Step 2: Convert to fraction form
   42,780/62,226 = 62,226/x
3. Step 3: Cross multiply
   42,780x = 62,226 × 62,226
4. Step 4: Simplify right side
   42,780x = 3,872,075,076
5. Step 5: Solve for x
   x = 3,872,075,076/42,780
6. Step 6: Final answer
   x = 90,511.34