Finding the Third Proportional to 37,218 and 76,410

Step by Step Solution

1. Step 1: Write the proportion equation
   37,218 : 76,410 = 76,410 : x
2. Step 2: Convert to fraction form
   37,218/76,410 = 76,410/x
3. Step 3: Cross multiply
   37,218x = 76,410 × 76,410
4. Step 4: Simplify right side
   37,218x = 5,838,488,100
5. Step 5: Solve for x
   x = 5,838,488,100/37,218
6. Step 6: Final answer
   x = 156,872.70