Finding the Third Proportional to 42,138 and 63,475

Step by Step Solution

1. Step 1: Write the proportion equation
   42,138 : 63,475 = 63,475 : x
2. Step 2: Convert to fraction form
   42,138/63,475 = 63,475/x
3. Step 3: Cross multiply
   42,138x = 63,475 × 63,475
4. Step 4: Simplify right side
   42,138x = 4,029,075,625
5. Step 5: Solve for x
   x = 4,029,075,625/42,138
6. Step 6: Final answer
   x = 95,616.20