Finding the Third Proportional to 1,997,431 and 4,314,090

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997,431 : 4,314,090 = 4,314,090 : x
2. Step 2: Convert to fraction form
   1,997,431/4,314,090 = 4,314,090/x
3. Step 3: Cross multiply
   1,997,431x = 4,314,090 × 4,314,090
4. Step 4: Simplify right side
   1,997,431x = 18,611,372,528,100
5. Step 5: Solve for x
   x = 18,611,372,528,100/1,997,431
6. Step 6: Final answer
   x = 9,317,654.79