Finding the Third Proportional to 487,696,365 and 742,978,080

Step by Step Solution

1. Step 1: Write the proportion equation
   487,696,365 : 742,978,080 = 742,978,080 : x
2. Step 2: Convert to fraction form
   487,696,365/742,978,080 = 742,978,080/x
3. Step 3: Cross multiply
   487,696,365x = 742,978,080 × 742,978,080
4. Step 4: Simplify right side
   487,696,365x = 552,016,427,360,486,400
5. Step 5: Solve for x
   x = 552,016,427,360,486,400/487,696,365
6. Step 6: Final answer
   x = 1,131,885,465.99