Finding the Third Proportional to 45,516 and 99,780

Step by Step Solution

1. Step 1: Write the proportion equation
   45,516 : 99,780 = 99,780 : x
2. Step 2: Convert to fraction form
   45,516/99,780 = 99,780/x
3. Step 3: Cross multiply
   45,516x = 99,780 × 99,780
4. Step 4: Simplify right side
   45,516x = 9,956,048,400
5. Step 5: Solve for x
   x = 9,956,048,400/45,516
6. Step 6: Final answer
   x = 218,737.33