Finding the Third Proportional to 5,156,740 and 10,928,178

Step by Step Solution

1. Step 1: Write the proportion equation
   5,156,740 : 10,928,178 = 10,928,178 : x
2. Step 2: Convert to fraction form
   5,156,740/10,928,178 = 10,928,178/x
3. Step 3: Cross multiply
   5,156,740x = 10,928,178 × 10,928,178
4. Step 4: Simplify right side
   5,156,740x = 119,425,074,399,684
5. Step 5: Solve for x
   x = 119,425,074,399,684/5,156,740
6. Step 6: Final answer
   x = 23,159,025.74