Finding the Third Proportional to 1,991,064 and 4,343,784

Step by Step Solution

1. Step 1: Write the proportion equation
   1,991,064 : 4,343,784 = 4,343,784 : x
2. Step 2: Convert to fraction form
   1,991,064/4,343,784 = 4,343,784/x
3. Step 3: Cross multiply
   1,991,064x = 4,343,784 × 4,343,784
4. Step 4: Simplify right side
   1,991,064x = 18,868,459,438,656
5. Step 5: Solve for x
   x = 18,868,459,438,656/1,991,064
6. Step 6: Final answer
   x = 9,476,571.04