Finding the Third Proportional to 5,405,602 and 7,280,985

Step by Step Solution

1. Step 1: Write the proportion equation
   5,405,602 : 7,280,985 = 7,280,985 : x
2. Step 2: Convert to fraction form
   5,405,602/7,280,985 = 7,280,985/x
3. Step 3: Cross multiply
   5,405,602x = 7,280,985 × 7,280,985
4. Step 4: Simplify right side
   5,405,602x = 53,012,742,570,225
5. Step 5: Solve for x
   x = 53,012,742,570,225/5,405,602
6. Step 6: Final answer
   x = 9,807,000.69