Finding the Third Proportional to 77,290.25 and 122,948

Step by Step Solution

1. Step 1: Write the proportion equation
   77,290.25 : 122,948 = 122,948 : x
2. Step 2: Convert to fraction form
   77,290.25/122,948 = 122,948/x
3. Step 3: Cross multiply
   77,290.25x = 122,948 × 122,948
4. Step 4: Simplify right side
   77,290.25x = 15,116,210,704
5. Step 5: Solve for x
   x = 15,116,210,704/77,290.25
6. Step 6: Final answer
   x = 195,577.20