Finding the Third Proportional to 5,421,156 and 7,227,248

Step by Step Solution

1. Step 1: Write the proportion equation
   5,421,156 : 7,227,248 = 7,227,248 : x
2. Step 2: Convert to fraction form
   5,421,156/7,227,248 = 7,227,248/x
3. Step 3: Cross multiply
   5,421,156x = 7,227,248 × 7,227,248
4. Step 4: Simplify right side
   5,421,156x = 52,233,113,653,504
5. Step 5: Solve for x
   x = 52,233,113,653,504/5,421,156
6. Step 6: Final answer
   x = 9,635,050.84