Finding the Third Proportional to 8,507,866 and 13,077,146

Step by Step Solution

1. Step 1: Write the proportion equation
   8,507,866 : 13,077,146 = 13,077,146 : x
2. Step 2: Convert to fraction form
   8,507,866/13,077,146 = 13,077,146/x
3. Step 3: Cross multiply
   8,507,866x = 13,077,146 × 13,077,146
4. Step 4: Simplify right side
   8,507,866x = 171,011,747,505,316
5. Step 5: Solve for x
   x = 171,011,747,505,316/8,507,866
6. Step 6: Final answer
   x = 20,100,427.95