Finding the Third Proportional to 139,831,083 and 211,689,976.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,831,083 : 211,689,976.50 = 211,689,976.50 : x
2. Step 2: Convert to fraction form
   139,831,083/211,689,976.50 = 211,689,976.50/x
3. Step 3: Cross multiply
   139,831,083x = 211,689,976.50 × 211,689,976.50
4. Step 4: Simplify right side
   139,831,083x = 44,812,646,150,570,552
5. Step 5: Solve for x
   x = 44,812,646,150,570,552/139,831,083
6. Step 6: Final answer
   x = 320,477,001.17