Finding the Third Proportional to 38,490 and 57,736

Step by Step Solution

1. Step 1: Write the proportion equation
   38,490 : 57,736 = 57,736 : x
2. Step 2: Convert to fraction form
   38,490/57,736 = 57,736/x
3. Step 3: Cross multiply
   38,490x = 57,736 × 57,736
4. Step 4: Simplify right side
   38,490x = 3,333,445,696
5. Step 5: Solve for x
   x = 3,333,445,696/38,490
6. Step 6: Final answer
   x = 86,605.50