Finding the Third Proportional to 139,077,380 and 302,368,617

Step by Step Solution

1. Step 1: Write the proportion equation
   139,077,380 : 302,368,617 = 302,368,617 : x
2. Step 2: Convert to fraction form
   139,077,380/302,368,617 = 302,368,617/x
3. Step 3: Cross multiply
   139,077,380x = 302,368,617 × 302,368,617
4. Step 4: Simplify right side
   139,077,380x = 91,426,780,546,492,688
5. Step 5: Solve for x
   x = 91,426,780,546,492,688/139,077,380
6. Step 6: Final answer
   x = 657,380,664.97