Finding the Third Proportional to 8,380,432 and 12,814,316

Step by Step Solution

1. Step 1: Write the proportion equation
   8,380,432 : 12,814,316 = 12,814,316 : x
2. Step 2: Convert to fraction form
   8,380,432/12,814,316 = 12,814,316/x
3. Step 3: Cross multiply
   8,380,432x = 12,814,316 × 12,814,316
4. Step 4: Simplify right side
   8,380,432x = 164,206,694,547,856
5. Step 5: Solve for x
   x = 164,206,694,547,856/8,380,432
6. Step 6: Final answer
   x = 19,594,060.85