Finding the Third Proportional to 40,212 and 62,490

Step by Step Solution

1. Step 1: Write the proportion equation
   40,212 : 62,490 = 62,490 : x
2. Step 2: Convert to fraction form
   40,212/62,490 = 62,490/x
3. Step 3: Cross multiply
   40,212x = 62,490 × 62,490
4. Step 4: Simplify right side
   40,212x = 3,905,000,100
5. Step 5: Solve for x
   x = 3,905,000,100/40,212
6. Step 6: Final answer
   x = 97,110.32