Finding the Third Proportional to 653,035,268.81 and 1,420,855,642.69

Step by Step Solution

1. Step 1: Write the proportion equation
   653,035,268.81 : 1,420,855,642.69 = 1,420,855,642.69 : x
2. Step 2: Convert to fraction form
   653,035,268.81/1,420,855,642.69 = 1,420,855,642.69/x
3. Step 3: Cross multiply
   653,035,268.81x = 1,420,855,642.69 × 1,420,855,642.69
4. Step 4: Simplify right side
   653,035,268.81x = 2,018,830,757,356,908,800
5. Step 5: Solve for x
   x = 2,018,830,757,356,908,800/653,035,268.81
6. Step 6: Final answer
   x = 3,091,457,466.04