Finding the Third Proportional to 6,132,390 and 12,900,316

Step by Step Solution

1. Step 1: Write the proportion equation
   6,132,390 : 12,900,316 = 12,900,316 : x
2. Step 2: Convert to fraction form
   6,132,390/12,900,316 = 12,900,316/x
3. Step 3: Cross multiply
   6,132,390x = 12,900,316 × 12,900,316
4. Step 4: Simplify right side
   6,132,390x = 166,418,152,899,856
5. Step 5: Solve for x
   x = 166,418,152,899,856/6,132,390
6. Step 6: Final answer
   x = 27,137,568.37