Finding the Third Proportional to 12,872,322 and 19,085,715

Step by Step Solution

1. Step 1: Write the proportion equation
   12,872,322 : 19,085,715 = 19,085,715 : x
2. Step 2: Convert to fraction form
   12,872,322/19,085,715 = 19,085,715/x
3. Step 3: Cross multiply
   12,872,322x = 19,085,715 × 19,085,715
4. Step 4: Simplify right side
   12,872,322x = 364,264,517,061,225
5. Step 5: Solve for x
   x = 364,264,517,061,225/12,872,322
6. Step 6: Final answer
   x = 28,298,275.72