Finding the Third Proportional to 5,621,906 and 12,501,316

Step by Step Solution

1. Step 1: Write the proportion equation
   5,621,906 : 12,501,316 = 12,501,316 : x
2. Step 2: Convert to fraction form
   5,621,906/12,501,316 = 12,501,316/x
3. Step 3: Cross multiply
   5,621,906x = 12,501,316 × 12,501,316
4. Step 4: Simplify right side
   5,621,906x = 156,282,901,731,856
5. Step 5: Solve for x
   x = 156,282,901,731,856/5,621,906
6. Step 6: Final answer
   x = 27,798,917.61