Finding the Third Proportional to 12,872,192 and 19,085,536

Step by Step Solution

1. Step 1: Write the proportion equation
   12,872,192 : 19,085,536 = 19,085,536 : x
2. Step 2: Convert to fraction form
   12,872,192/19,085,536 = 19,085,536/x
3. Step 3: Cross multiply
   12,872,192x = 19,085,536 × 19,085,536
4. Step 4: Simplify right side
   12,872,192x = 364,257,684,407,296
5. Step 5: Solve for x
   x = 364,257,684,407,296/12,872,192
6. Step 6: Final answer
   x = 28,298,030.70