Finding the Third Proportional to 55,621 and 83,539.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,621 : 83,539.50 = 83,539.50 : x
2. Step 2: Convert to fraction form
   55,621/83,539.50 = 83,539.50/x
3. Step 3: Cross multiply
   55,621x = 83,539.50 × 83,539.50
4. Step 4: Simplify right side
   55,621x = 6,978,848,060.25
5. Step 5: Solve for x
   x = 6,978,848,060.25/55,621
6. Step 6: Final answer
   x = 125,471.46