Finding the Third Proportional to 40,804,990 and 86,215,316

Step by Step Solution

1. Step 1: Write the proportion equation
   40,804,990 : 86,215,316 = 86,215,316 : x
2. Step 2: Convert to fraction form
   40,804,990/86,215,316 = 86,215,316/x
3. Step 3: Cross multiply
   40,804,990x = 86,215,316 × 86,215,316
4. Step 4: Simplify right side
   40,804,990x = 7,433,080,712,979,856
5. Step 5: Solve for x
   x = 7,433,080,712,979,856/40,804,990
6. Step 6: Final answer
   x = 182,161,071.79