Finding the Third Proportional to 56,344.50 and 87,746.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,344.50 : 87,746.50 = 87,746.50 : x
2. Step 2: Convert to fraction form
   56,344.50/87,746.50 = 87,746.50/x
3. Step 3: Cross multiply
   56,344.50x = 87,746.50 × 87,746.50
4. Step 4: Simplify right side
   56,344.50x = 7,699,448,262.25
5. Step 5: Solve for x
   x = 7,699,448,262.25/56,344.50
6. Step 6: Final answer
   x = 136,649.51