Finding the Third Proportional to 12,943,390 and 28,145,924

Step by Step Solution

1. Step 1: Write the proportion equation
   12,943,390 : 28,145,924 = 28,145,924 : x
2. Step 2: Convert to fraction form
   12,943,390/28,145,924 = 28,145,924/x
3. Step 3: Cross multiply
   12,943,390x = 28,145,924 × 28,145,924
4. Step 4: Simplify right side
   12,943,390x = 792,193,037,813,776
5. Step 5: Solve for x
   x = 792,193,037,813,776/12,943,390
6. Step 6: Final answer
   x = 61,204,447.82