Finding the Third Proportional to 57,490 and 88,804.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,490 : 88,804.50 = 88,804.50 : x
2. Step 2: Convert to fraction form
   57,490/88,804.50 = 88,804.50/x
3. Step 3: Cross multiply
   57,490x = 88,804.50 × 88,804.50
4. Step 4: Simplify right side
   57,490x = 7,886,239,220.25
5. Step 5: Solve for x
   x = 7,886,239,220.25/57,490
6. Step 6: Final answer
   x = 137,175.84