Finding the Third Proportional to 1,178,426,707.88 and 1,772,559,991.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178,426,707.88 : 1,772,559,991.69 = 1,772,559,991.69 : x
2. Step 2: Convert to fraction form
   1,178,426,707.88/1,772,559,991.69 = 1,772,559,991.69/x
3. Step 3: Cross multiply
   1,178,426,707.88x = 1,772,559,991.69 × 1,772,559,991.69
4. Step 4: Simplify right side
   1,178,426,707.88x = 3,141,968,924,131,190,272
5. Step 5: Solve for x
   x = 3,141,968,924,131,190,272/1,178,426,707.88
6. Step 6: Final answer
   x = 2,666,240,423.04