Finding the Third Proportional to 55,198.13 and 87,547.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,198.13 : 87,547.50 = 87,547.50 : x
2. Step 2: Convert to fraction form
   55,198.13/87,547.50 = 87,547.50/x
3. Step 3: Cross multiply
   55,198.13x = 87,547.50 × 87,547.50
4. Step 4: Simplify right side
   55,198.13x = 7,664,564,756.25
5. Step 5: Solve for x
   x = 7,664,564,756.25/55,198.13
6. Step 6: Final answer
   x = 138,855.53