Finding the Third Proportional to 8,619,375 and 12,854,316

Step by Step Solution

1. Step 1: Write the proportion equation
   8,619,375 : 12,854,316 = 12,854,316 : x
2. Step 2: Convert to fraction form
   8,619,375/12,854,316 = 12,854,316/x
3. Step 3: Cross multiply
   8,619,375x = 12,854,316 × 12,854,316
4. Step 4: Simplify right side
   8,619,375x = 165,233,439,827,856
5. Step 5: Solve for x
   x = 165,233,439,827,856/8,619,375
6. Step 6: Final answer
   x = 19,170,002.45