Finding the Third Proportional to 18,477,051,507 and 37,933,627,630.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,477,051,507 : 37,933,627,630.50 = 37,933,627,630.50 : x
2. Step 2: Convert to fraction form
   18,477,051,507/37,933,627,630.50 = 37,933,627,630.50/x
3. Step 3: Cross multiply
   18,477,051,507x = 37,933,627,630.50 × 37,933,627,630.50
4. Step 4: Simplify right side
   18,477,051,507x = 1,438,960,105,209,584,680,960
5. Step 5: Solve for x
   x = 1,438,960,105,209,584,680,960/18,477,051,507
6. Step 6: Final answer
   x = 77,878,232,068.81