Finding the Third Proportional to 1,000,510,931.81 and 2,173,256,216.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,000,510,931.81 : 2,173,256,216.16 = 2,173,256,216.16 : x
2. Step 2: Convert to fraction form
   1,000,510,931.81/2,173,256,216.16 = 2,173,256,216.16/x
3. Step 3: Cross multiply
   1,000,510,931.81x = 2,173,256,216.16 × 2,173,256,216.16
4. Step 4: Simplify right side
   1,000,510,931.81x = 4,723,042,581,061,563,392
5. Step 5: Solve for x
   x = 4,723,042,581,061,563,392/1,000,510,931.81
6. Step 6: Final answer
   x = 4,720,630,660.68