Finding the Third Proportional to 38,779.74 and 84,219.79

Step by Step Solution

1. Step 1: Write the proportion equation
   38,779.74 : 84,219.79 = 84,219.79 : x
2. Step 2: Convert to fraction form
   38,779.74/84,219.79 = 84,219.79/x
3. Step 3: Cross multiply
   38,779.74x = 84,219.79 × 84,219.79
4. Step 4: Simplify right side
   38,779.74x = 7,092,972,951.98
5. Step 5: Solve for x
   x = 7,092,972,951.98/38,779.74
6. Step 6: Final answer
   x = 182,904.09