Finding the Third Proportional to 5,478,594 and 8,516,298

Step by Step Solution

1. Step 1: Write the proportion equation
   5,478,594 : 8,516,298 = 8,516,298 : x
2. Step 2: Convert to fraction form
   5,478,594/8,516,298 = 8,516,298/x
3. Step 3: Cross multiply
   5,478,594x = 8,516,298 × 8,516,298
4. Step 4: Simplify right side
   5,478,594x = 72,527,331,624,804
5. Step 5: Solve for x
   x = 72,527,331,624,804/5,478,594
6. Step 6: Final answer
   x = 13,238,311.07