Finding the Third Proportional to 5,607,936 and 8,402,490

Step by Step Solution

1. Step 1: Write the proportion equation
   5,607,936 : 8,402,490 = 8,402,490 : x
2. Step 2: Convert to fraction form
   5,607,936/8,402,490 = 8,402,490/x
3. Step 3: Cross multiply
   5,607,936x = 8,402,490 × 8,402,490
4. Step 4: Simplify right side
   5,607,936x = 70,601,838,200,100
5. Step 5: Solve for x
   x = 70,601,838,200,100/5,607,936
6. Step 6: Final answer
   x = 12,589,629.80