Finding the Third Proportional to 56,912 and 81,984.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,912 : 81,984.50 = 81,984.50 : x
2. Step 2: Convert to fraction form
   56,912/81,984.50 = 81,984.50/x
3. Step 3: Cross multiply
   56,912x = 81,984.50 × 81,984.50
4. Step 4: Simplify right side
   56,912x = 6,721,458,240.25
5. Step 5: Solve for x
   x = 6,721,458,240.25/56,912
6. Step 6: Final answer
   x = 118,102.65