Finding the Third Proportional to 51,520 and 78,002

Step by Step Solution

1. Step 1: Write the proportion equation
   51,520 : 78,002 = 78,002 : x
2. Step 2: Convert to fraction form
   51,520/78,002 = 78,002/x
3. Step 3: Cross multiply
   51,520x = 78,002 × 78,002
4. Step 4: Simplify right side
   51,520x = 6,084,312,004
5. Step 5: Solve for x
   x = 6,084,312,004/51,520
6. Step 6: Final answer
   x = 118,096.12