Finding the Third Proportional to 55,905 and 85,804.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,905 : 85,804.50 = 85,804.50 : x
2. Step 2: Convert to fraction form
   55,905/85,804.50 = 85,804.50/x
3. Step 3: Cross multiply
   55,905x = 85,804.50 × 85,804.50
4. Step 4: Simplify right side
   55,905x = 7,362,412,220.25
5. Step 5: Solve for x
   x = 7,362,412,220.25/55,905
6. Step 6: Final answer
   x = 131,695.06