Finding the Third Proportional to 48,991.50 and 68,779.13

Step by Step Solution

1. Step 1: Write the proportion equation
   48,991.50 : 68,779.13 = 68,779.13 : x
2. Step 2: Convert to fraction form
   48,991.50/68,779.13 = 68,779.13/x
3. Step 3: Cross multiply
   48,991.50x = 68,779.13 × 68,779.13
4. Step 4: Simplify right side
   48,991.50x = 4,730,568,035.77
5. Step 5: Solve for x
   x = 4,730,568,035.77/48,991.50
6. Step 6: Final answer
   x = 96,558.95