Finding the Third Proportional to 77,778.98 and 168,011.72

Step by Step Solution

1. Step 1: Write the proportion equation
   77,778.98 : 168,011.72 = 168,011.72 : x
2. Step 2: Convert to fraction form
   77,778.98/168,011.72 = 168,011.72/x
3. Step 3: Cross multiply
   77,778.98x = 168,011.72 × 168,011.72
4. Step 4: Simplify right side
   77,778.98x = 28,227,937,637.33
5. Step 5: Solve for x
   x = 28,227,937,637.33/77,778.98
6. Step 6: Final answer
   x = 362,925.00