Finding the Third Proportional to 650,578,636.69 and 991,121,914.69

Step by Step Solution

1. Step 1: Write the proportion equation
   650,578,636.69 : 991,121,914.69 = 991,121,914.69 : x
2. Step 2: Convert to fraction form
   650,578,636.69/991,121,914.69 = 991,121,914.69/x
3. Step 3: Cross multiply
   650,578,636.69x = 991,121,914.69 × 991,121,914.69
4. Step 4: Simplify right side
   650,578,636.69x = 982,322,649,773,816,064
5. Step 5: Solve for x
   x = 982,322,649,773,816,064/650,578,636.69
6. Step 6: Final answer
   x = 1,509,921,467.41