Finding the Third Proportional to 39,490 and 61,870

Step by Step Solution

1. Step 1: Write the proportion equation
   39,490 : 61,870 = 61,870 : x
2. Step 2: Convert to fraction form
   39,490/61,870 = 61,870/x
3. Step 3: Cross multiply
   39,490x = 61,870 × 61,870
4. Step 4: Simplify right side
   39,490x = 3,827,896,900
5. Step 5: Solve for x
   x = 3,827,896,900/39,490
6. Step 6: Final answer
   x = 96,933.32