Finding the Third Proportional to 72,677,394 and 111,710,409

Step by Step Solution

1. Step 1: Write the proportion equation
   72,677,394 : 111,710,409 = 111,710,409 : x
2. Step 2: Convert to fraction form
   72,677,394/111,710,409 = 111,710,409/x
3. Step 3: Cross multiply
   72,677,394x = 111,710,409 × 111,710,409
4. Step 4: Simplify right side
   72,677,394x = 12,479,215,478,947,280
5. Step 5: Solve for x
   x = 12,479,215,478,947,280/72,677,394
6. Step 6: Final answer
   x = 171,706,975.06