Finding the Third Proportional to 28,726,789 and 61,434,890

Step by Step Solution

1. Step 1: Write the proportion equation
   28,726,789 : 61,434,890 = 61,434,890 : x
2. Step 2: Convert to fraction form
   28,726,789/61,434,890 = 61,434,890/x
3. Step 3: Cross multiply
   28,726,789x = 61,434,890 × 61,434,890
4. Step 4: Simplify right side
   28,726,789x = 3,774,245,709,312,100
5. Step 5: Solve for x
   x = 3,774,245,709,312,100/28,726,789
6. Step 6: Final answer
   x = 131,384,183.22