Finding the Third Proportional to 37,779.75 and 56,139.75

Step by Step Solution

1. Step 1: Write the proportion equation
   37,779.75 : 56,139.75 = 56,139.75 : x
2. Step 2: Convert to fraction form
   37,779.75/56,139.75 = 56,139.75/x
3. Step 3: Cross multiply
   37,779.75x = 56,139.75 × 56,139.75
4. Step 4: Simplify right side
   37,779.75x = 3,151,671,530.06
5. Step 5: Solve for x
   x = 3,151,671,530.06/37,779.75
6. Step 6: Final answer
   x = 83,422.24