Finding the Third Proportional to 165,744,558 and 260,004,300

Step by Step Solution

1. Step 1: Write the proportion equation
   165,744,558 : 260,004,300 = 260,004,300 : x
2. Step 2: Convert to fraction form
   165,744,558/260,004,300 = 260,004,300/x
3. Step 3: Cross multiply
   165,744,558x = 260,004,300 × 260,004,300
4. Step 4: Simplify right side
   165,744,558x = 67,602,236,018,490,000
5. Step 5: Solve for x
   x = 67,602,236,018,490,000/165,744,558
6. Step 6: Final answer
   x = 407,870,018.99