Finding the Third Proportional to 143,078,600 and 309,926,762

Step by Step Solution

1. Step 1: Write the proportion equation
   143,078,600 : 309,926,762 = 309,926,762 : x
2. Step 2: Convert to fraction form
   143,078,600/309,926,762 = 309,926,762/x
3. Step 3: Cross multiply
   143,078,600x = 309,926,762 × 309,926,762
4. Step 4: Simplify right side
   143,078,600x = 96,054,597,803,804,640
5. Step 5: Solve for x
   x = 96,054,597,803,804,640/143,078,600
6. Step 6: Final answer
   x = 671,341,471.08