Finding the Third Proportional to 42,829,840 and 65,248,556

Step by Step Solution

1. Step 1: Write the proportion equation
   42,829,840 : 65,248,556 = 65,248,556 : x
2. Step 2: Convert to fraction form
   42,829,840/65,248,556 = 65,248,556/x
3. Step 3: Cross multiply
   42,829,840x = 65,248,556 × 65,248,556
4. Step 4: Simplify right side
   42,829,840x = 4,257,374,060,085,136
5. Step 5: Solve for x
   x = 4,257,374,060,085,136/42,829,840
6. Step 6: Final answer
   x = 99,402,053.80