Finding the Third Proportional to 164,648,590.50 and 357,993,901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   164,648,590.50 : 357,993,901.50 = 357,993,901.50 : x
2. Step 2: Convert to fraction form
   164,648,590.50/357,993,901.50 = 357,993,901.50/x
3. Step 3: Cross multiply
   164,648,590.50x = 357,993,901.50 × 357,993,901.50
4. Step 4: Simplify right side
   164,648,590.50x = 128,159,633,511,191,696
5. Step 5: Solve for x
   x = 128,159,633,511,191,696/164,648,590.50
6. Step 6: Final answer
   x = 778,382,815.92