Finding the Third Proportional to 5,419,424 and 8,316,528

Step by Step Solution

1. Step 1: Write the proportion equation
   5,419,424 : 8,316,528 = 8,316,528 : x
2. Step 2: Convert to fraction form
   5,419,424/8,316,528 = 8,316,528/x
3. Step 3: Cross multiply
   5,419,424x = 8,316,528 × 8,316,528
4. Step 4: Simplify right side
   5,419,424x = 69,164,637,974,784
5. Step 5: Solve for x
   x = 69,164,637,974,784/5,419,424
6. Step 6: Final answer
   x = 12,762,359.61