Finding the Third Proportional to 56,712 and 83,771.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,712 : 83,771.50 = 83,771.50 : x
2. Step 2: Convert to fraction form
   56,712/83,771.50 = 83,771.50/x
3. Step 3: Cross multiply
   56,712x = 83,771.50 × 83,771.50
4. Step 4: Simplify right side
   56,712x = 7,017,664,212.25
5. Step 5: Solve for x
   x = 7,017,664,212.25/56,712
6. Step 6: Final answer
   x = 123,742.14