Finding the Third Proportional to 58,038 and 78,303

Step by Step Solution

1. Step 1: Write the proportion equation
   58,038 : 78,303 = 78,303 : x
2. Step 2: Convert to fraction form
   58,038/78,303 = 78,303/x
3. Step 3: Cross multiply
   58,038x = 78,303 × 78,303
4. Step 4: Simplify right side
   58,038x = 6,131,359,809
5. Step 5: Solve for x
   x = 6,131,359,809/58,038
6. Step 6: Final answer
   x = 105,643.89