Finding the Third Proportional to 129,343,090,852.50 and 283,069,309,189.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,343,090,852.50 : 283,069,309,189.50 = 283,069,309,189.50 : x
2. Step 2: Convert to fraction form
   129,343,090,852.50/283,069,309,189.50 = 283,069,309,189.50/x
3. Step 3: Cross multiply
   129,343,090,852.50x = 283,069,309,189.50 × 283,069,309,189.50
4. Step 4: Simplify right side
   129,343,090,852.50x = 80,128,233,805,020,741,500,928
5. Step 5: Solve for x
   x = 80,128,233,805,020,741,500,928/129,343,090,852.50
6. Step 6: Final answer
   x = 619,501,461,399.26