Finding the Third Proportional to 45,519.19 and 99,376.31

Step by Step Solution

1. Step 1: Write the proportion equation
   45,519.19 : 99,376.31 = 99,376.31 : x
2. Step 2: Convert to fraction form
   45,519.19/99,376.31 = 99,376.31/x
3. Step 3: Cross multiply
   45,519.19x = 99,376.31 × 99,376.31
4. Step 4: Simplify right side
   45,519.19x = 9,875,651,486.10
5. Step 5: Solve for x
   x = 9,875,651,486.10/45,519.19
6. Step 6: Final answer
   x = 216,955.79