Finding the Third Proportional to 387,048,480 and 599,293,440

Step by Step Solution

1. Step 1: Write the proportion equation
   387,048,480 : 599,293,440 = 599,293,440 : x
2. Step 2: Convert to fraction form
   387,048,480/599,293,440 = 599,293,440/x
3. Step 3: Cross multiply
   387,048,480x = 599,293,440 × 599,293,440
4. Step 4: Simplify right side
   387,048,480x = 359,152,627,227,033,600
5. Step 5: Solve for x
   x = 359,152,627,227,033,600/387,048,480
6. Step 6: Final answer
   x = 927,926,721.81