Finding the Third Proportional to 4,553,738 and 9,864,156

Step by Step Solution

1. Step 1: Write the proportion equation
   4,553,738 : 9,864,156 = 9,864,156 : x
2. Step 2: Convert to fraction form
   4,553,738/9,864,156 = 9,864,156/x
3. Step 3: Cross multiply
   4,553,738x = 9,864,156 × 9,864,156
4. Step 4: Simplify right side
   4,553,738x = 97,301,573,592,336
5. Step 5: Solve for x
   x = 97,301,573,592,336/4,553,738
6. Step 6: Final answer
   x = 21,367,407.08