Finding the Third Proportional to 5,870,142 and 12,782,406

Step by Step Solution

1. Step 1: Write the proportion equation
   5,870,142 : 12,782,406 = 12,782,406 : x
2. Step 2: Convert to fraction form
   5,870,142/12,782,406 = 12,782,406/x
3. Step 3: Cross multiply
   5,870,142x = 12,782,406 × 12,782,406
4. Step 4: Simplify right side
   5,870,142x = 163,389,903,148,836
5. Step 5: Solve for x
   x = 163,389,903,148,836/5,870,142
6. Step 6: Final answer
   x = 27,834,063.15