Finding the Third Proportional to 56,413 and 87,065.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,413 : 87,065.50 = 87,065.50 : x
2. Step 2: Convert to fraction form
   56,413/87,065.50 = 87,065.50/x
3. Step 3: Cross multiply
   56,413x = 87,065.50 × 87,065.50
4. Step 4: Simplify right side
   56,413x = 7,580,401,290.25
5. Step 5: Solve for x
   x = 7,580,401,290.25/56,413
6. Step 6: Final answer
   x = 134,373.31