Finding the Third Proportional to 112,980.19 and 154,920.56

Step by Step Solution

1. Step 1: Write the proportion equation
   112,980.19 : 154,920.56 = 154,920.56 : x
2. Step 2: Convert to fraction form
   112,980.19/154,920.56 = 154,920.56/x
3. Step 3: Cross multiply
   112,980.19x = 154,920.56 × 154,920.56
4. Step 4: Simplify right side
   112,980.19x = 24,000,380,685.32
5. Step 5: Solve for x
   x = 24,000,380,685.32/112,980.19
6. Step 6: Final answer
   x = 212,430.00