Finding the Third Proportional to 78,471,992 and 168,938,613.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,471,992 : 168,938,613.50 = 168,938,613.50 : x
2. Step 2: Convert to fraction form
   78,471,992/168,938,613.50 = 168,938,613.50/x
3. Step 3: Cross multiply
   78,471,992x = 168,938,613.50 × 168,938,613.50
4. Step 4: Simplify right side
   78,471,992x = 28,540,255,131,302,384
5. Step 5: Solve for x
   x = 28,540,255,131,302,384/78,471,992
6. Step 6: Final answer
   x = 363,699,893.48