Finding the Third Proportional to 5,495,289 and 8,406,117

Step by Step Solution

1. Step 1: Write the proportion equation
   5,495,289 : 8,406,117 = 8,406,117 : x
2. Step 2: Convert to fraction form
   5,495,289/8,406,117 = 8,406,117/x
3. Step 3: Cross multiply
   5,495,289x = 8,406,117 × 8,406,117
4. Step 4: Simplify right side
   5,495,289x = 70,662,803,017,689
5. Step 5: Solve for x
   x = 70,662,803,017,689/5,495,289
6. Step 6: Final answer
   x = 12,858,796.51